Hello Adelli Meghana,

Well, if you don't exit from josaa till 5 round or till 6th of November then you have to pay 36500/- again in CSAB (if GEN) and 21500/-(for others) and institute where you get selected through josaa will also charge some processing charge if you accept seat there(by not exiting josaa before 5th round)... So, I would suggest Exit if you are willing for CSAB and confident that you will get a seat in CSAB, otherwise you can pay partial fee and again CSAB registration fee of same amount as josaa +1500/- to retain the previous seat at NIT and participate in CSAB,

you can refer to previous year's CSAB business rule at ( CSAB Business Rule 2019 (https://csab.nic.in/CMS/Handler/FileHandler.ashx?i=File&ii=138&iii=Y) )

Choose Wisely, Good Luck!

Hope this helps, and feel free to ask any further query...