Hi Avi,

The score secured in JEE mains is taken into consideration for the admission into colleges,but not for all the colleges as there are private colleges as well which give admission based on other examination score as well,and ofcourse there are colleges you can get into from management qota which doesnt include or need these marks and all you need is money and good percentile in your 10+2(if you can pay the fee which would be in lakhs).

Hope this helps and ALL THE BEST :)