How could I get settlement my NPA education loan?

I have received a education loan amount of 125000 from SBI,at 2011. I have paid 1,28000 upto December 2016. Due to some unavoidable circumstance I could not pay my emi amount 8,645 for last two months. Previously I was unable to pay 3 emi. Now my loan goes to NPA . bank manager ask me to pay total 97,000 within 1week. But I don't have any money to pay instantly. I asked him to give some time, but today one officer from bank and one police constable has reached my home, ask to pay, unless they will arrest me. I am preparing myself for competitive exam. I have completed my graduation in 2013. Kindly suggest me how could I handle this situation. Thank you