Hi Sangeetha..I would suggest Hexilak Silicon Gel for scars.
There are two versions one with Silicon (Rs.350 approx) and one without Silicon(Rs.250 approx)..
For Surgery scars,Silicon version is better.
For Burnt scars, without silicon version will do.
Others Silicon gels available in Indian Market are Vaniza gel and Kelcote gel.
I have Hexilak, I write a review soon Hope this helps