Goggles are very difficult items to give advice on. What suits one swimmer may not suit another. I have found that my favourite is the Zoggs Predator, which is easy to find here in the UK. If you can wear the Swedish type, I have found that Kiefer make them in tinted and clear and they have the added advantage of being very cheap and if you treat them right they will last for years. I don't know whether Zoggs or Kiefer are easily obtainable in India but I presume Amazon is searchable for them.
For what it's worth, I would search Amazon for Aqua Sphere, Zoggs, Speedo and Kiefer and see what comes up.
The Swedish type are particularly suitable for backstroke, I think. A lot depends on the shape of your eye sockets.