Thanks for A2A
As far as i am aware all preparatory institutes are same, in imparting the knowledge to the customers. It totally depends on the faculty who is imparting the knowledge.
Still if we go by overall rating Aakash Institute situated at Kapoor thala Crossing is termed as best Aakash Institute.
The reason behind the most sought after Aakash centre is simply there results they have delivered. But there is someone else who is ruling at the top position for providing prepration for medical is Scholastic Classes.