What Causes Irregular Periods And PCOD With Weight Gain?

Hello Docotr,i need best gynacologist in Bangalore because i'm suffering from PCOD prblm,i was under treatment from many years firstly i went fr check up wen i was in varanasi and second time wen i was in delhi after that my period was normal but wen i came to bnglr fr 2-3 months it was normal but again the same prblm had started and i gained lots of weight during irregularities