Pls dont use the words freelancer & working because as per the interpretation of the words there are different meaning under the income tax act, 1961.
1)So as per your query i would like to give a suggestion that first clarify whether u have extra income leaving the above mentioned which has been said in your query.
2) Also tell me whether the nstitution in which u are working are giving u any form 16, or 16A like.
After giving my answer i can help u .
u can mail me at firstname.lastname@example.org