Unexplained cash credits under Section 68 require taxpayers to prove investor identity and genuineness; authorities must rebut with evidence.

Applicability of Section 68 requires the assessee to establish investor identity, creditworthiness and transaction genuineness-via PAN, tax returns, audited accounts and bank statements-and once this initial burden is satisfied, the burden shifts to the revenue to rebut with concrete evidence; mere suspicion or inability to trace an ultimate source does not alone justify additions if investments are reasonable relative to investors' net worth and effected through banking channels.

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