How to handle loss from my second income

Dear Members,

I am having 2 source of income. One is from my salary and other one is from a shop which I am running with some staffs. This financial year is my first chance to file tax with 2 income.

But unfortunately from my shop I didn't earn much rather when I check balance sheet I am in a loss of around 1.5 Lakh against rent, Staff salary etc.

Can I claim tax rebate on the loss? I am sure I can do it, can someone help me how to handle this. What all documents I need to produce to claim the same? Someone please help me on this.

Regards