hello dipendra

from round 1 to round 7 are normal rounds which actually varies every year and keeps changing depending on the open seats . This year, JoSAA might be conducting spot counselling upto 6 rounds only due to less time then there are special rounds and spot rounds too . Special round is just like other rounds ,it held at the end of the couselling procedure. People who are already alloted with the college can apply for the special round.  Till seventh round most of the students finalize their seats. So anyone with a mains rank can apply for special round. Spot round is held for the vacant seats . People who didn’t get any seat till 7th round ,can apply for spot round. Anyone with a college alloted ,can’t apply for spot round. I am providing you a link which will help you get a understanding about this year https://engineering.careers360.com/articles/josaa-counselling check it out hope it helps you