Hii,yes at the admission process jee main score will be considered.As jee main score help you in getting Nit and as well some state government college.if i talk about mht cet it only considered only in maharashtra state 85% quata and the seat is reserved and as well jee main score based on all india quata.So,if u take admission in maharashtra state throught cet then ur cet score 85% quata+jee main 15% quata.Your chance is incrase getting admission easily.So,at the admission process you should carry both jee main and cet score.Hope,this information helpful for you.Goodluck.