Dear aspirant

Yes you can easily use your JEE MAIN rank and score in WBJEE counselling . Meny colleges and universities in West Bengal which participate in WBJEE counselling aslo take part in JEE MAIN counselling too( Example Jadavpur University) .

When you start WBJEE counselling in WBJEEB official website then at first you have to choose by which entrance exam's rank you want to do the counselling and choice filling .  There are 3 options total.  You can start counselling by WBJEE rank or JEE MAIN rank , even by both rank simultaneously . By choosing the third option that is "both JEE MAIN and WBJEE rank " you can get every available options of both the entrances in choice filling procedure. You can sort and mix them according to your preference .

By this way you can use your JEE MAIN rank in WBJEE counselling.

Best Wishes.