ITR-3 for F&O Losses

Dear Sir,

I am a government employee; my F&O (only options) losses are 2.4 lakh and my turnover is 8 lakh. 

1. Am I required to maintain any books of accounts? If yes, please share a sample balance sheet, as I am a non-account person.
2. Where do I input my losses in ITR-3 (item no.) to carry forward my losses?

Please help me.