Regarding repayment of loan

I have taken a education loan from a private sector bank, of RS, 1,85,000 . in the year 2012 . now they are asking to pay a sum of RS, 2,85,000 ie, 1,00,000 int . but while handing over me the term amount of RS.40,000 they said me that interest will be calculated only after 4 years + 1year of my study time . what should i do now ,. i dont a have a job . and they are forcing for repayment and they are also hiking the intrest