It depends heavily on the shape of the deal, and that shape decides your tax more than the headline number. If the acquirer pays cash for your shares, that is a straightforward sale and you pay capital gains on your profit, with the rate set by how long you held. If instead you receive the acquirer's shares in a share swap, the tax can sometimes be deferred until you later sell those shares, depending on how the deal is structured and whether it qualifies under Indian merger provisions. Earnouts, escrows, and vesting on the new shares each have their own timing, so cash you cannot touch yet can still create a tax event, or not, depending on the terms. This is genuinely complex and the amounts are large, so involve a CA and a deal lawyer early. Treat this as general education, not advice.
3 resources, 2 India-specific, 2 link-checked.
The India reference on short vs long term capital gains, holding periods, and rates for equity, funds, and property, so you know the tax before you sell.
From ClearTax by ClearTax
Open cleartax.in →Zerodha Varsity free module on how investment income is taxed in India: capital gains, holding periods, and turnover, in plain language.
From Zerodha Varsity by Zerodha Varsity
Open zerodha.com →A calm explainer of what a secondary actually is, who has to approve it, and how the price gets set, before you raise it with your board.
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