Hello!
Allen Kota is a very good private coaching institute which teaches the students not only from any board but also for various national, international and government Olympiads like NSTSE, NSO, IMO, IEO, UIEO, NTSE, JSO, RMO, NMTC and so on, state or national level Engineering and Medical entrance exam.
Hope this helps.
Best wishes
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile