Usually the confirmation after probation is based on Appraisal.
Has any appraisal been conducted with you in your presence and do you have copies?
You may go thru UGC guidelines, ordinances of service conditions.................
A pursual of various guidelines,ordinances show that indeed there is a provision for PBAS and max. probation period is 24 months and the employer has to conduct,finalize PBAS a month before due date of confirmation......................................
https://www.dauniv.ac.in/notices/UGCWorkloadandCodeEthicsRegulation.pdf
Service Agreement and PBAS………
https://www.jnu.ac.in/RTI/ordinance/ORDINANCES(Final).pdf
Probation: In NO case it shall exceed 24 months.
file:///C:/Documents%20and%20Settings/Administrator/My%20Documents/Downloads/GO(P)No%20573-2012-Fin%20Dated%2016-10-2012.pdf
10. Period of Probation and Confirmation
The unions of Teachers can also guide you.
You may go thru another thread at:
https://www.lawyersclubindia.com/experts/Thrown-out-of-the-job-477341.asp#.U65HppSSwb8
You should consult a competent and experienced Labor Consultant/Service lawyer with all docs on record in person for expert advise of your lawyer.