It depends on number of participants and it varies every year. 350 is more than enough to just get into Manipal (main campus) if you aren't aspiring for any specific branch, you'll have a choice of just 2 or maybe 3 branches if you're lucky whereas you'll have multiple options at manipal jaipur because the cutoff here is much more relaxed than the main campus.

This is the cutoff of Mechanical Engineering in 2019