I am student of shri chaitanya IIT acadamy hydrabad. At present I am getting AIR 250-400 in Advance Test and AIR 130-450 in mains test. What

You can definitely get into IITs if you keep up this momentum.

The top notch IITs and NITs accept top AIR  under 3000 for top end branches.

Hence, you should start giving complete mock tests with full syllabus, then you shall be better llaced to gauge how much you're capable of scoribg in final exams.

Giving 20mock exams is the key to success, you will then be able to identify major repetitive mistakes and what approach you need to improve scores.

You will be able to judge key strengths and accuracy shall improve by practice, which is key to get into top IiTs.

Do not get complacent if you start scoring too good, as the situation and dynamics and pressure during final exam is intense.
Make sure you be relaxed , calm and be abreast and revised with all fundamentals to score big.

Hope these tips help you..!! all The best.