Delhi cooperative society

Dear Sir\Madam Ineed your help on society fund raising issue my points are as under 1. Iam having society flat in delhi -Rohini area on my wife's name. 2.i am paying regularly society maintainance fees with getting receipts of that 3. from last 2-3 years society is demanding some amout of money which most of the people paid (my self also paid by cheque) but due to lack of other society members interest society management returned the cheques ...it happened two times ( society collected the chq without giving receipt and also not deposited in the society account) now finally management called to members may be last year again to collect the amount again 60% members paid but this time i didnt ...and by my self gvn verble confirmation to society that now when you will start the work i will pay you the chq ...now the society started to served the notice to nonpayer i thing i got also but without mentioning any clause of INTREST in that notice meanwhile i hv approached many time to the society office but they are demanding INTREST and main amount ..finally now they served letter to me by mentioning me as an occupier of flat and for non receipt of said due the are writing as DEFAULTER latter issue date and recovery date they mentioned same ( for amt +intrest) by mentioning for recovery thru legal by the section 111 of dcs act 2013.....pls adv in this situation what to do .....my self only want to pay base amout not the intrest also pls adv can i challange on the point that delhi govt has passed a resolution that MLA fund can be utilised in the society work also .....