Hello,
It's tough to make exact predictions as cut-offs vary every years based on multiple factors such as seat matrix, reservation, total number of candidates appearing for the exam, difficulty level of the paper etc, however if we go last year through JOSAA Counseling of sixth round for IITs pertaining to SC Category(Gender Neutral), you may have chances for Mechanical Engineering in the following IITs:-
You can go through previous year closing ranks for various programs offered by IITs against your respective category at https://josaa.nic.in/Result/Result/currentorcr.aspx
To know more detailed information about your admission possibilities in various courses offered by IITs, you may use our JEE Advanced College Predictor at https://engineering.careers360.com/jee-advanced-college-predictor?icn=QnA&ici=qna_answer
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