HELLO,

With a ST preparatory rank of 245 you have a very good and high chance of getting into an IIT through the preparatory course especially in newer IITs .

All IITs offer a one year preparatory course for SC, ST and PwD candidates which is designed to help them qualify for the regular undergraduate programs.

Successful completion of the preparatory course leads to direct admission to the allotted IIT

IITs to Consider:-With your rank you have high probability of getting newer IITs like IIT Indore , IIT Mandi, IIT Palakkad

Hope that Helps!