Apart from income, other details like details of holding of unlisted equity shares, directorship in Indian companies, holding of foreign assets and investments, cash deposit above specified limits, etc. are to be filled in compulsorily. “It is also important to pre-validate the bank account details in the income tax portal to expedite the processing of refund,” explained Divakar Vijayasarathy, founder and managing partner of DVS Advisors LLP., a consultancy.