Dear Pratik, 

With the marks secured 155 your rank might be around 30,000 - 40,000. However you can use rank predictor tool for exact analyis. Here is the link for it

https://www.google.com/url?sa=t&source=web&rct=j&url=https://engineering.careers360.com/jee-main-rank-predictor&ved=2ahUKEwi4itmctofjAhWFOI8KHY7CBXoQFjAAegQIARAB&usg=AOvVaw2QNQ0E4U1hgytKWWo9jfZm.

Based on the rank you can also check for the colleges in favour using college predictor and here is the link for it too :

https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.careers360.com/college-predictor&ved=2ahUKEwi59ea4tofjAhVJso8KHXlrAX8QFjAAegQIBRAB&usg=AOvVaw2AOFtKT1Kl7aX4aICHr3xY.

Hope this helps.

All the best.