A possibility, in the context of Dholavira find of a two-sided bronze age seal, which uses Meluhha hieroglyphs to denote dhokra kamar lost-wax metal casters, is that Araṭṭa mentioned in cuneiform texts (Sumer) may refer to Lāṭa (cognate with Rāṭa following the phonetic changes of r~~l).

A region in the Rann of Kutch, bordering Baluchistan, with a number of archaeological sites such a Surkotada, Kanmer may constitute Araṭṭa as Lāṭa. Such an identification is consistent with cuneiform texts mentioning the mountains to cross before Enmerkar could reach Lugalbanda.

Hence, this is an addendum to the discussions on http://bharatkalyan97.blogspot.in/2014/01/aratta-as-meluhha-speech-area-re.html  Araṭṭa as Meluhha speech area -- re-visiting Baudhāyana śrautasūtra evidence

Āraṭṭa or Arāṭṭa may also link phonetically with Lāṭa mentioned in ancient Indian texts.

Rock Edicts  of Ashoka found in Girnar, near Junagad in Saurashtra refer to: Yona-Kamboja-Gandharam Ristika Petenikanam ye va pi amne Aparata... Could the reference to Ristika here a recollection of Marhashi, Marhaši (Mar-ḫa-ši^KI , Marhashi, Marhasi, Parhasi, Barhasi; in earlier sources Waraḫše) a 3rd millennium BCE polity situated east of Elam? An inscription attributed to Lugal-Anne-Mundu of Adab (albeit in much later copies) mentions it among the seven provinces of his empire, between the names of Elam and Gutium. This inscription also recorded that he confronted their governor (ensi), Migir-Enlil of Marhashi, who had led a coalition of 13 rebel chiefs against him.

Some Meluhha glosses:
.
खालट [ khālaṭa ] a Lowish or low--a country or tract: low, depressed, dumpy--a thing. खालाट [ khālāṭa ] n खालाटी or ठी f (खालीं & ठाय) The low country; the country as it descends from the foot of the Sayhádri-range towards the coast. Opp. to वलाठी. Applied also, in the Konkan̤, to the land lying immediately along the coast, as वलाटी is to the land lying inwards and ascending towards the Gháṭs. 2 The name of the vowelmarks ु and ू; these occurring under the line of writing; as वेलाटी (from वलाटी or वर & ठाय) is the name of those occurring over it.

खालाटकर [ khālāṭakara ] c An inhabitant of खालाटी.
वलाट [ valāṭa ] n वलाटी or ठी f (वर & ठाय Upper-country.) The land as it rises from the coast towards the foot of the Sayhádri range. Opp. to खालाटी The descending country. 2 Applied in the Konkan̤ to the inward or eastern portion of this land, as खालाटी is to that bordering upon the sea.

वलाटकर [ valāṭakara ] c An inhabitant of वलाटी.
लाट [ lāṭa ] f A wave. 2 The cross piece of a बगाड (hook-swing); also of a machine for pounding lime, pohe &c. 3 The roller of an oilmill; also of a certain kind of sugarmill. 4 A beam or rail laid across and before the idol in an idol-house. 5 A roller for leveling ground. 6 The beam of a lime and pebble mill. 7 A large beam or piece of timber in general. लाट्या [ lāṭyā ] m C (लाटणें) A cylindrical roller or muller of a mortar. 2 Any mass (as of dough, earth &c.) so shaped. लाठ [ lāṭha ] f A contrivance (with three poles &c.) to draw water out of deep wells. लाठा [ lāṭhā ] m unc A rolling-pin.

लाड [ lāḍa ] m A caste or an individual of it. They sell betel-leaf, areca-nut, tobacco, bháng &c.

लाड [ lāḍa ] f (Commonly राड) The muck-pit in the festival of Shimgá.
राट [ rāṭa ] m R (Usually रहाट) A waterwheel &c. राड [ rāḍa ] a Foul, turbid, muddy--water &c.
रहाट  [ rahāṭa ] m ( H) A machine (composed of two wheels connected by a beam) for drawing water. 2 The wheel of a machine or an engine in general; as of the above contrivance for drawing water, of a spinning machine, a rope-machine &c.: also, by synecdoche, such machine.

रहाटगाडगें  [ rahāṭagāḍagēṃ ] n A wheel with wreaths or a wreath of pots around it, erected over the mouth of a well to draw up water; the Persian waterwheel. 2 fig. The wheel of fortune; constant alternations or vicissitudes; succession of ups and downs, of good and evil; an alternation or reciprocal succession in general. 3 fig. Dealing or business with; a rotation or course of giving and receiving, receiving and giving.

रहाटणें  [ rahāṭaṇēṃ ] v i (रहाट) To be much practised or exercised in; to be conversant with. 2 (Poetry.) To behave.

रहाटपाळणा  [ rahāṭapāḷaṇā ] m The fabric of swinging boxes erected at fairs &c.; a revolving swing or cradle in general.

रहाटवड  [ rahāṭavaḍa ] f C The materials required for, or the articles and items composing, a रहाट or waterwheel.

रहाटवणी  [ rahāṭavaṇī ] n C (रहाट & पाणी) Water drawn up by a waterwheel; as disting. from that of a stream &c.

रहाटागर  [ rahāṭāgara ] m n (रहाट & आगर) A plantation irrigated by means of a waterwheel.

रहाटी  [ rahāṭī ] f (Dim. of रहाट) A waterwheel worked with the feet. 2 fig. Course, custom, established usage respecting. 3 (Poetry.) Behaviour, demeanour. 4 unc (राई) A dense wood or grove.

रहाट्या  [ rahāṭyā ] a (रहाट) Employed or fit to be employed in working a waterwheel--a man or beast. 2 In games of play. A person that plays on both sides. 3 Applied to a vacillating person who espouses sometimes the one side and sometimes the other, a trimmer, turncoat, timeserver. 4 fig. A conductor or manager. 5 One serving (at weddings &c.) without remuneration. 6 A person pressed as a guide, carrier of burdens &c. from village to village; a carrier on of the रहाट (wheel or course of business).

araghaṭṭa m. ʻ wheel for raising water ʼ Pañcat., °aka- m. lex. Pa. araghaṭṭa -- m., Pk. arahaṭṭa -- , rah° m.; K. arahaṭh, dat. °ṭas m. ʻ Persian wheel ʼ; S. arṭu m. ʻ Persian wheel, spinning wheel ʼ; L. aruṭṭ, araṭ m. ʻ Persian wheel ʼ, mult. raṭṭ m. ʻ wheel of a well on which rope ladder and pots are hung ʼ; P. cuharhṭā m. ʻ a well with four Persian wheels ʼ; Ku. rahaṭ ʻ spindle ʼ; N. rohoṭe piṅ ʻ a wheel on which seats are slung and used at fairs ʼ; Or. araṭa ʻ spinning wheel ʼ, Bi. rahṭā; Mth. rahaṭ, rā° ʻ wheel at the top of a well ʼ; Aw. lakh. rãhaṭā ʻ spindle ʼ; H. arhaṭ, rahaṭ, rẽṭ m. ʻ Persian wheel ʼ, °ṭī f. ʻ small do. ʼ, rahṭā m. ʻ Persian wheel, spinning wheel ʼ; OG. arahaṭa m., G. rahẽṭ, re_ṭ, m. ʻ waterwheel ʼ, re_ṭiyɔ, °ṭuṛɔ m. ʻ spinning wheel ʼ; M. rahāṭ, rāṭ ʻ Persian wheel ʼ. -- Poss. X halá -- : S. halaṭru m. ʻ Persian wheel with bullocks and apparatus included ʼ, P. halhaṭ m. ʻ Persian wheel ʼ.S.kcch. araṭ m. ʻ spinning wheel ʼ. (CDIAL 596).

मराठा [ marāṭhā ] a (महाराष्ट्र S The great territory.) Relating to the Maráṭhá country. 2 Relating to the Maráṭhá people; but with some distinctiveness or speciality. Applied to the Kun̤bí it contradistinguishes him from the Bráhman and the high castes on the one hand, and from the Parwárí and all outcastes on the other. मराठा, as likewise the term राजा or राव, is arrogated to themselves by many who claim descent from the (extinct) Kshatriya or Military tribe, and who wear accordingly the जानवें or characteristic thread. Such, although they eat with the common Kun̤bi, esteem themselves higher and scruple at intermarriage.

gurjararāṣṭra ʻ kingdom of the Gurjaras ʼ. [gur- jará -- , rāṣṭrá -- ] B. gujrāṭ. 4211 *gurjaratrā ʻ country of the Gurjaras ʼ. [gurjará -- ]Pk. gujjarattā -- f., H. gujarāt m., G. gujrāt f. 4210 gurjará m. ʻ name of a people ʼ Pañcat.Pk. gujjara -- m.; K. gujoru, °juru m. ʻ pastoral wandering tribe ʼ (lw. with j); P. gujjar m. ʻ a caste of milkmen ʼ; H. gūjar m. ʻ inferior caste of Rajputs ʼ; OMarw. gujarī f. ʻ a Gūjar woman ʼ; OG. gūjaraḍī f. ʻ a woman of Gujarat ʼ, G. gujrī f.; M. guj̈ar m. ʻ an inhabitant of Gujarat ʼ, °rḍā m. (contemptuous), Ko. gujaru. (CDIAL 4213)
mahārāṣṭra n. ʻ kingdom ʼ MW., m. ʻ name of a people ʼ MārkP., °ṭraka -- , °ṭrīya -- adj., °ṭrī -- f. ʻ their language ʼ. [mahā -- , rāṣṭrá -- ]
Pk. marahaṭṭha -- m., inscr. mahāraṭhi; N. marāṭhi ʻ of or belonging to the Marāṭhās, the Marāṭhī language ʼ; H. marhaṭṭā m. ʻ a Marāṭhā ʼ; G. marāṭhɔ m., marāṭhī ʻ the language ʼ; M. marāṭhā m., marāṭhī adj., f. ʻ the language ʼ; Si. maharaṭa ʻ the land of the Marāṭhās ʼ. (CDIAL 9952)

rāḍhā f. ʻ district in West Bengal ʼ Kathās., °ḍha -- m. ʻ belonging to this district ʼ lex. [MIA. < rāṣṭrá -- ??] Pk. rāḍhā -- f. ʻ name of a district ʼ, B. rāṛ(h), Or. rāṛha, H. rāṛh m.
rāḍhīya -- .rāḍhīya ʻ belonging to Rāḍhā ʼ Prab.com. [rāḍhā -- ] (CDIAL 10698, 10699)

Raṭṭha (nt.) [Vedic rāṣṭra] reign, kingdom, empire; country, realm Sn 46 (expld at Nd2 536 as "raṭṭhañ ca janapadañ ca koṭṭhāgārañ ca . . . nagarañ ca"), 287, 444, 619; J iv 389 (˚ŋ araṭṭhaŋ karoti); PvA 19 (˚ŋ kāreti to reign, govern). Pabbata˚ mountain -- kingdom SnA 26; Magadha˚ the kingdom of Magadha PvA 67. -- vāsin inhabitant of the realm, subject DhA iii.481 Raṭṭhaka (adj.) [Sk. rāṣṭraka] belonging to the kingdom, royal, sovereign J iv.91 (senāvāhana). Raṭṭhika [fr. raṭṭha, cp. Sk. rāṣṭrika] 1. one belonging to a kingdom, subject in general, inhabitant J ii.241 (brāhmaṇa gahapati -- r. -- do ārik'ādayo). -- 2. an official of the kingdom [op Sk. rāṣṭriya a pretender; also king's brother in -- law] A iii.76=300 (r. pettanika senāya senāpatika).(Pali)

súrāṣṭra ʻ having good dominion ʼ TS., m. ʻ a country in the west of India ʼ MBh. [su -- 2, rāṣṭrá -- ] (CDIAL 13504) Pk. suraṭṭha -- n. ʻ name of a country ʼ. saurāṣṭra ʻ coming from Surāṣṭra ʼ, m. pl. ʻ its people ʼ VarBr̥S., n. ʻ a partic. metre ʼ Col. [súrāṣṭra -- ] (CDIAL 13621 )
G. M. soraṭh m. ʻ a district in Kathiawar ʼ; -- Pk. sōraṭṭha -- n. ʻ a partic. metre ʼ; S. soraṭhi f. ʻ a partic. musical mode ʼ, P. soraṭh f.; N. soraṭh ʻ a Gurung song and dance"; H. soraṭh f. ʻ a partic. musical mode ʼ, G. M. soraṭh m. (M. also f.); -- P. H. sorṭhā m. ʻ a partic. metre ʼ, OMarw. soraṭho m. rāṣṭrá n. ʻ kingdom, country ʼ RV., ʻ people ʼ Mn. [√rāj2]Pa. Pk. raṭṭha -- n. ʻ kingdom, country ʼ; Ku. rāṭh ʻ faction, clan, separate division of a joint -- family group ʼ; Si. raṭa ʻ country, district ʼ, Md. ra ʼ (abl. rařuṅ). - rāṣṭrín ʻ possessing a kingdom ʼ ŚBr., rāṣṭrika -- m. ʻ governor ʼ Hariv. [rāṣṭrá -- ] Pa. raṭṭhika -- m. ʻ governor ʼ, Pk. raṭṭhiya -- m., OSi. raṭiya. -- L. P. rāṭh
N. rāṛi ʻ blanket ʼ; B. rāṛi ʻ belonging to Rāṛh ʼ; Or. rāṛhi ʻ native of West Bengal, a class of fisherman ʼ; H. rāṛhī ʻ coming from Rāṛh ʼ.(CDIAL 10724, 10721)

From: Fleet, John F. Corpus Inscriptionum Indicarum: Inscriptions of the Early Guptas. Vol. III. Calcutta: Government of India, Central Publications Branch, 1888, 84-88, we have a discussion on Mandasor Inscription of Kumaragupta and Bandhuvarman. This refers to the district of lāṭa http://www.sdstate.edu/projectsouthasia/upload/Mandasor-of-Kumara.pdf A Sun-temple was built at the city of Das'apura (Mandasor) under the rule of Bandhuvarman (436 CE) by a guild of silk-weavers who were immigrants from lāṭa vishaya which is described as adorned with shrines of gods (devakula), halls of temples (devasabha), viharas, prasada-mala and vimana-mala.
Lāṭa is the ancient name of Southern or Central Gujarāt and ancient Konkan-- perhaps the region between the rivers Mahi and lower Tapti. or between rivers Mahi and Kim (Broach). Dipavamsa (p.54) refers to Simhapura (Sihapura) as the capital of Lāṭa. Ptolemy refers to Lārike [Rāṣṭrika, Lāṭika (Prakrit)]along the sea-coast, east of Indo-Sythia. Baroda copper plate inscription refers to the capital of Lāṭes'vara as Elapur. the legend of Vijaya and his followers may be in Singhapur (Simhapura or Singur), in the Lala Rattha (Lāṭa Rāṣṭra) (Mahavamsa VI.34). The Sanskrit phrase,  Apara-Malava-Pashcimena Lata-desa is a reference to this region.  Al Biruni refers (Al Biruni's India, p. 205) to it as Lardesh to the extreme hilly west of Bengal where Hooghly district and modern Singur is located. There is however an epic reference to one Sinhapura kingdom with little historical proof, located on the upper Indus which shared borders with Ursa, Abhisara, Bahlika, Darada and Kamboja. (Mahabharata: 2.27.18-22).

It was thought by some early historians that the Republican Gramaneyas of Sabhaparva of Mahabharata[18] may have been the ancestors of the Sinhalese.[19] The original home of the Gramaneyas seems to have been the Sinhapura of Gandhara/Kamboja, but the people shifted to lower Indus and then, after defeat by Pandava Nakula, to Saurashtra Peninsula, centuries prior to common era. There they seem to have founded a principality in Saurashtra Peninsula, centuries prior to common era which they named Sinhapura probably to commemorate their past connections with Sinhapura of Gandhara/Kamboja (According to Dr Hema Chandra Ray, K. M. De Silva et al. also, there is an evidence that the Kambojas who inhabited a region bordering upper Indus, had at one time established themselves in a country near Sindh. The authors have also furnished references to this Southward migration of the Kambojas to a country near Sind (See: History of Ceylon, 1959, p. 93, Hem Chandra Ray, K. M. De Silva, Simon Gregory Perera. Cunningham mentions 'Hingur' as an ancient place name located 40 miles East from the apex of Indus Delta (Ancient Geography of India, map facing p. 248, A Cunningham). The Delta of Indus is still known as Lar and the Sinhapura of Sinhalese traditions was also located somewhere in this region. Scholars say that 'Hingur' could well be a corrupted version of Sinhapura (Ancient Kamboja, People and the Country, 1981, p. 351, Dr J. L. Kamboj).] http://en.wikipedia.org/wiki/Prince_Vijaya