Practical banking case

hiii frnds.... Please refer the case and help me out..

Q. ABC Enterprises having C/C limit of 1 crore. Last credit entry in the accounts is on 24-12-2011 of Rs. 600000.

Credit Balance continues till 12-01-2012. Closing Balance on 31st March2012 is 8938789 debit..

Help out whether ds account is declared as NPA or not?????????