KINDLY GUIDE ME THAT A PARTNER OF A PARTNERSHIP FIRM WANT TO SUBMIT INCOME TAX RETURN FOR THE A.Y.2018-2019. HIS YEARLY TOTAL INCOME FROM THE PARTNERSHIP FIRM. WHICH ITR FORM WILL BE SUBMIT. IF HE SUBMITS ITR-3, WHAT IS THE CODE OF NATURE OF BUSINESS. HE IS INVOLVE WITH A PARTNERSHIP FIRM OF MEDICINE WHOLE SELLER.