There are more than one kind of Biryani in India.
The most popular styles are 1)Awadhi(Lucknow) Biryani and 2)Hyderabadi Biryani 3)Sindhi Biryani etc.

In Awadhi Biryani the meat and rice are cooked seperately and then layered and then steamed. It's a very complex process which brings out the best fragrances of all the spices without being too spicy itself.
The Hyderabadi Biryani is a bit more on the spicier side where the meat and rice are cooked together.

Since we don't know which type of Biryani you have tasted in Bangalore we cannot say for certain where to go for similar experience.