hello,

yes, ofcourse outside maharashtra students take part in cap counseling through jee mains rank. Since you are outside domicile then you need to have a good rank because about more than 50% seats are reseverd for maharashtra domicile students. To appear in cap round you need to register yourself from the official website. Also if you want to analyse which colleges may you get in cap round you can visit the below link:

all the best!!