We visited tantra on valentine day 2015.They charged approx 700 rupees for couple.Inside decoration was very good made of those red heart balloon.
Music was very very good on that day.they were playing very selective songs among which most of them were our favorite.
Drink was a bit overpriced but that is manageable.They had a selfie booth with bunch of roses and various card written with love notes and there was a professional photographer as well.He took our picture and sent us on face book.Only it becomes over crowded as time passes so if you can handle that that tantra is a place for you. Will visit again