Itr form selection

Hi,

I was a partner in Partnership firm of professional up to FY 2014-15(AY 2015-16). Now i am continuing my practice as a propritory firm.I have not filed return for FY 2015-16 and FY 2016-17. My income is less than 3 Lacs.for both the year. MY QUESTION IS WHICH ITR FORM I SHOULD SELECT FOR MY INCOME TAX RETRUN FILING?

Regards.. Anya