This is an addendum to
Indus Script metals artificer, merchant hypertexts of R̥gveda metaphor, riddle of Emuṣa Yajñavarāha एमूष यज्ञवराह carried by Rudra, Brahma, Viṣṇu to form the many types of Yajña -- Kalika Purāṇa http://tinyurl.com/yxcevul5
Varāha is a ऋभु an artist , one who works in iron , a smith , builder (of carriages &c ). ऋभु signifies being clever , skilful , inventive , prudent (said of इन्द्र , अग्नि , and the आदित्यs RV. ; also of property or wealth RV. iv , 37 , 5 ; viii , 93 , 34 ; of an arrow AV. i , 2 , 3). r̥bhu-s are venerated in eleven sūktas in RgVeda, I. 20, I. 110, I. 161,I. 164, IV. 33- IV.-39. This veneration is an adoration of the artificers and seafaring merchants of Sarasvati Civilization. In Meluhha rebus rendering of many Indus inscriptions, the reference to the boar reads: baḍhi 'boar' rebus: baḍhi 'worker in iron and wood'; baḍiga 'artificer'.vāḍhī, 'one who helps a merchant (Hemacandra Desinamamamala).
barāh, baḍhi 'boar' vāḍhī, bari, barea 'merchant' bārakaśa 'seafaring vessel'. baṛae = blacksmith (Ash.) baḍhi, bāṛaï ' carpenter', vāḍhī, bari, barea'merchant' పట్టడ paṭṭaḍa paṭṭaḍu. [Tel.] n. A smithy, a shop. కుమ్మరి వడ్లంగి మొదలగువారు పనిచేయు చోటు. వడ్రంగి, వడ్లంగి, వడ్లవాడు (p. 1126) vaḍraṅgi, vaḍlaṅgi, vaḍlavāḍu or వడ్లబత్తుడు vaḍrangi. [Tel.] n. A carpenter. వడ్రంగము, వడ్లపని, వడ్రము or వడ్లంగితనము vaḍrangamu. n. The trade of a carpenter. వడ్లవానివృత్తి. వడ్రంగిపని. వడ్రంగిపిట్ట or వడ్లంగిపిట్ట vaḍrangi-piṭṭa. n. A woodpecker. దార్వాఘాటము. వడ్లకంకణము vaḍla-kankaṇamu. n. A curlew. ఉల్లంకులలో భేదము. వడ్లత or వడ్లది vaḍlata. n. A woman of the carpenter caste. Ta. paṭṭaṭai, paṭṭaṟai anvil, smithy, forge. Ka. paṭṭaḍe, paṭṭaḍi anvil, workshop. Te. paṭṭika, paṭṭeḍa anvil; paṭṭaḍa workshop. Cf. 86 Ta. aṭai. (DEDR 38650) There is also a pun on the word aṭai., aṭi. 'anvil' in a smithy.
Varāha is a ऋभु an artist , one who works in iron , a smith , builder (of carriages &c ). ऋभु signifies being clever , skilful , inventive , prudent (said of इन्द्र , अग्नि , and the आदित्यs RV. ; also of property or wealth RV. iv , 37 , 5 ; viii , 93 , 34 ; of an arrow AV. i , 2 , 3). r̥bhu-s are venerated in eleven sūktas in RgVeda, I. 20, I. 110, I. 161,
http://www.tirumala.org/Varaha_TempleLegend.aspx According to Atri Samhita (Samurtarchanadhikara), Varāha Avatāra is worshipped in three ways as ādi Varāha, Praḷaya Varāha and Yajna Varāha. The idol of Sri Varāha Swamy in Tirumala is that of Adi Varāha as described in Vaikhānasa āgama Sastra.The whole area of seven Hills of Tirupati is called as ādi Varāha kṣetra.
कल्पkalpa is the period of time between the creation and recreation of a world or universe.. Kalpa is the ceremonial, one of the six disciplines of the Vedānga in Kalpa Sutras which detail rites of passage rituals associated with major life events such as birth, wedding and death in family, as well as personal conduct and proper duties in the life of an individual. The Sutras are (1) the Śrautasūtras, which are based on the śruti, and (2) the Smārtasūtras, or Gṛhyasūtras or rules based on the smriti or tradition.
Śrautasūtras include Śulbasûtra (or Shulva-sutras) deal with the mathematical methodology to construct altar geometries for the Vedic Yajna. Baudhayana Shulba Sutra is dated to ca. (800-500 BCE), while the one by Katyayana is dated to ca. (~300 BCE)
Rigveda | Asvalayana-sutra, Sankhayana-sutra, Saunaka-sutra |
Samaveda | Latyayana-sutra, Drahyayana-sutra, Nidana-sutra, Pushpa-sutra, Anustotra-sutra |
Yajurveda | Manava-sutra, Bharadvaja-sutra, Vadhuna-sutra, Vaikhanasa-sutra, Laugakshi-sutra, Maitra-sutra, Katha-sutra, Varaha-sutra |
Atharvaveda | Kusika-sutra |
Brāhmaṇa texts note that the earth, over time, begins to sink into the cosmic sea and fish, tortoise, boar incarnations, which later become three of the Ten Great Avatars of Viṣṇu, lift up the submerged earth. Viṣṇu thus assumes the three forms of Matsya, Kurma and Varāha Avatāra in the process of rescue. In Varāha Avatāra, demonic serpent king called Hiranyaksa is vanquished to complete the rescue of lifting the Earth divinity up from the bottom of the ocean of existence, as she clings to Varāha's single tusk, which symbolizes the post or Skambha or Yūpa to which the sacrificial animal is tied. A pictorial metaphor of this event is seen in Airāvateśvara temple. Brahma as Hamsa searches for the end of this Skambha, while Varāha searches deep into the ocean to trace the beginning of the Skambha which is an eternal Skambha, a fiery pillar of light and fire. This metaphor evokes the process of Yupa topped by caṣāla which is godhuma 'wheat chaff' set on fire to produce fumes which infuse carbon element in to the molten metal to harden it. A Meluhha rebus rendering shows this caṣāla as snout of the boar. Hence the signifier of knowledge system Sarasvati on the snout of the boar in Khajuraho and standing on the protruding tongue of Eran pratimā.
The present kalpa, the first day in the second half of Brahma’s life time, is named Varaha- kalpa, after the Lord’s avatara in the form of a boar. (See Vishnu P. text:


नारायणोपि विश्वात्मा सुश्वेतोह्याभवत्तदा।
दशयोजन विस्तीर्णे सतयोजन मायेतम् ।।
मेरुपर्वतवर्षसमानम् गौरतीक्ष्णनोग्रदमस्थीनम् ।
कालादित्यसमाभाषं दिर्घघ्नोमम् अहास्वनम् ।।
ह्रस्वापादम् विचित्राड़्गम्जैत्रम् धृधमनौपामम् ।
वाराहकारमास्थाय गतवामस्तद्धौ जवात् ।।
एवं वर्ष सहस्रं च चरणविष्णुर्द्योगत ।
तथाप्रभृति लोकेसु श्वेतवाराहसज्ञांकः।।
And the soul of the universe, viz. Narayana assumed the form of a white complexioned boar spreading hundred yojanas in height and ten yojana in girth. Having his chin as like as the meru mountain shining with white hue and having sharp-pointed teeth, resembling the radiance of the form of the sun which is seen at the time of destruction of the universe, having a long nose, creating huge noise, having medium feet, and strange looking parts, stern, victorious; assuming such an incomparable form of the boar, he with an excellent speed, moved downwards. This way for thousands of years, Vishnu travelled down and down. In remembrance of that incident from that day, that Kalpa was famed as ṣvētavārāha kalpa.[Shiva Purana: 2.7.56-59]
https://hinduism.stackexchange.com/questions/13635/why-is-present-kalpa-named-as-sweta-varaha-kalpa