Hello Ajay,
Firstly I wish you a good luck for your results. Now according to the latest statement by the officials of NTA, results will announce by this week. After the declaration of JEE Mains results, JEE Advanced will start their registration process on their website.

To check expected rank you can use our rank predictor:
https://engineering.careers360.com/jee-main-rank-predictor?utm_source=qna&utm_medium=jee_rp

Hope this will help you.
Thank you!