Itr return filling

If all three businesses are non-speculative, then business loss of one business can be set off against the business profit of other two businesses.

you will have to fill up ITR-4. In that you will have to merge figures of Balance Sheet and P&L of all the three businesses and then have to put those merged figures in ITR in Balance sheet and P&L however computation will be made for each business seperately showing it as business 1, business 2 and business 3.

Hope this will solve your query.

Loss from 1 business can be set of from other business.

ITR 4 is to be filled up.