which return to file.?

File ITR 1 for AY 2017-18

That is the only source from which a student can earn income virtually ........

@ Ramesh Punjabi.......... Only ITR 3 for AY 2017-18

ITR-1 does not have deduction for Profession Tax.???

As a student are you liable to pay Profession Tax?

To just answer of your query......... net amount after any deduction can be filled.......

@ Ramesh: Practically........... no problem if you file ITR 1 and show all the income under IFOS....... basically because total income is under basic exemption limit....... (dividend income may be otherwise exempted)

My Pleasure