Failed to file for 5years

Dear Prabhkar,

                              What is your exact problem ? Why are you thinking about filing of the 5 year old income tax return. please write me your problem in detail sothat i can give you a rational solution of it. my email id is sachinagarwalcallb @ gmail.com

practically, penalty is not payable in routine. also, u r not having any tax liability, so dont think penalty will be levied though income tax act prescribes it for late filing.  So file ur returns regularly in future.