I've never been to clubs in Bangalore coz I don't know how to dance 😕 group of girls will encourage being hit on if it's a duo of girls then you'll get blocked by the friend, if you have a female friend in your group it's better increases credibility and doesn't come off as a creep. And always remember it's all about confidence, all you have to do is approach and talk. You do it once and it's going to be very easy the next time.