The Joint Seat Allocation Authority (JoSAA) 2019 has been set up by the Ministry of Human Resources Development (MHRD) to manage and regulate the joint seat allocation for admissions to 107 institutes for the academic year 2019-20. This includes 23 IITs, 31 NITs, 25 IIITs and 28 Other-Government Funded Technical Institutes (Other-GFTIs). Admission to all the academic programs offered by these Institutes will be made through a single platform.

Yes, you have to pay approx 45000 to josaa during your seat acceptance procedure. As you get admission in any of the college through Josaa then they will manage this amount in your admission fee.

Here is the official link for JOSAA  where you can get all the details of this long procedure. https://josaa.nic.in/webinfocms/Public/home.aspx

GOOD LUCK !