There is no legal requirement to pay income taxes on Bitcoins capital gains in India, because the government has not yet passed any regulation defining bitcoin as a property or an asset.
In the USA this was regulated back in 2014 itself where BTC was declared as an asset and hence capital gain taxes chargeable to citizens holding BTC stock.
India gov' is still in denial about bitcoins and hence there is absolutely no requirement to pay capital gains from a legal perspective. Unless you wish to fill the coffers of the Gandhis and the Modis with your hard earned money
