How much expected marks I needed to get CS from old iits i.e.,IIT Kanpur, IIT Bombay, IIT Delhi ,etc.?
Cutoff is based on ranks as for different narks you can have different rnaks in all years.
Ranks within 4000 ubder General category in Jee Advanced can have decentchances of conversion for CsE engineering .
Cutoff trends for all branches shared below.
https://engineering.careers360.com/articles/jee-advanced-cutoff