With a preparatory rank of 3935, your chances of getting a seat at IIT Madras are unlikely. While a preparatory rank can sometimes lead to admission in less competitive IITs or specific courses, 3935 is a high rank within the preparatory category, and IIT Madras is one of the most sought-after IITs.

Preparatory Courses:

IITs offer preparatory courses for SC, ST, and PwD students who didn't qualify for regular IIT programs but have a qualifying rank in JEE Advanced.

Limited Seats:

The number of seats in preparatory courses is limited, and the competition for these seats can be high, especially for the most prestigious IITs.

Rank Significance:

A rank of 3935 within the preparatory category means you're among the lower-ranked candidates within that group, and IIT Madras is highly selective even within the preparatory program.

Factors Influencing Admission:

Besides rank, other factors like category, branch preferences, and the specific IIT's admission policies can influence seat allocation.

Alternative Options:

If you don't get a seat at IIT Madras, explore other IITs with more lenient admission criteria or consider NITs or other engineering colleges where you might have better chances.