I had sold a house in 2012 through unregistered sale deed and tax on the same was calculated and paid in 2012. The full consideration was received in cash only in 2012. Now I want to register the sale deed. Will this effect my tax liability as there is huge increase in 2017 than that was in 2012 ?
Yes, ONLY Chartered Accountants and other Senior Advocates are wise enough to advice you without seeing your I.T. Returns. If they ask you for showing your IT Returns, then assume that they are not CA/Senior Advocates worth their salt!