The government expects an over 20 per cent increase in its overall revenue collection in Q3 of the current fiscal, a senior Central Board of Direct Taxes (CBDT) official said. “I am hoping that in Q3, we can see an increase of about 22-23 per cent in the overall revenue collection. This will, of course, mean an increase of about 25 per cent in the corporate tax collection,” CBDT’s member (revenue) Durgesh Shankar, said. However, much would depend on the self-assessment tax, Mr Shankar said, adding that filing of returns by companies is due now. “The returns are due now. There will be a self-assessment tax paid by people who were conservative last year.