Adding capital gains in itr2

I am a retd employee.In last FY I gained a  small amount less than  fifty thousand rupees by trading in options.Recently I knew that I have to file itr 3  for this amount.but I verified  itr 3 online to file it.but I could not understand this form.so much information required which is irrelevant tome. So,can anyone advise me whether I can show amout in other income in ITR 1 as amount is  low and even after adding to my pension amt it is less than taxable amount.

Thanks in advance