If I were Zubin (1) / I would not attend (2) / the wedding, come what may. (3) /No error. (4)

Answer

2

Explanation

I would attend will replace I would not attend because -
the sentence is Affirmative. come what may (Idiom): no matter what happens, despite any problems or difficulties. Look at the examples given below: I.ll be home for the holidays, come what may. Come what may, I.ll be home in time for dinner.