Inquiry about the VTU detention system.

I am a student under VTU. I was in 4th semester when i was detained a semester for attendance shortage which i got due to an accident. I wasn't allowed to write the forth semester exam but was allowed for my back papers. I had a critical maths paper which i couldn't clear. The doubt I have is, do i get a year back because i didn't clear the critical paper? or do I have to join the forth semester according to the detention case? Please help with a reply as no one in my college knows the proper VTU rules. I'm in need of proper assistance.