No u give exam at same time.. U get a chance
To give reexam after 1and half month..
Most importantly it depends on how many time u fail..
If u fail more than 2times u will get a year back..
If u fail again u will get more year back..
Ur burden also increases and sometimes it will become too pressurized….
If u fail in 4th year u will join late in internship
If u fail repeatedly in 4th year ur batchmate will leave u
If u fail repeatedly college and govt. Will kick u out from institution.