suggest best lpg gas stove (stainless steel)-3/4 burner

Not sure about Suryaflame, but decades old desi brands such as Hindware or Sunflame are the best in my opinion. Other brands such as Faber and Elica will surely give you a little premium experience, but are more prone to minor technical issues and require a little more to repair than the other two brands. I've been personally using Elica 3 burner but would not recommend it to anyone looking for reliability and fuss free experience for years.

We are using khaitan in our home. Good product, You can check it as well.

Yes it is good

I have ordered a Milton 3 burner. looks fine with the quality