ICICI Bank Limited - Tenure double

I Roshan Singh Rathore. I took a home loan from ICICI Bank Branch Ahinsa Circle, C-Scheme,Jaipur. In the year of **** against the property address **-A , Sundar Vihar Colony, Ram Nagar Ext., Sodala, Jaipur. The Loan amount is Rs.*,**,***/-. The loan tenture was ** year and the EMI was Rs. ****-/. The regularly paid my EMI as a time till ** years. According to agreement *** month completed in ****. when I visite the branch for NOC. They said to me still my outstanding is *,**,***. On consultancy the bank, they said me it is the principal amount to be paid yet, But the EMI that I paid consist of interrest + Principal. that was to get over in ** year. but according to the bank i have to pay emi around (** year) till ****. I have no any information that my tenure is *** to *** increased. it is just double. in my agreement tenure was *** mention. Now I am ** year old. i have Retired from ( GOV ) service as a post of driver in jun ****. I am not able to continue this Home loan Further. I want the clearification in respect to it. The ROI i'm paying is also in appropriate as compared to other banks.