Illegal, unothrised construction,residence area convert into commercialize.ward no -83,

We are the general secatery of nawab ganj residence welfare assoiation[regd]india.In our residence area lot of builders comes & constructed commercial activities.they purchase houses & convert to commercialize,they construct basement,godowns,& ff to 4-5th floor flats systems.they not take any permisson and not sentioned mpd/ubbl etc.residence people are gives many complaint letter to mcd city zone,building department,old hindu college kashmiri gate delhi-as well as RWA also gives complaint time to time city zone building department but they not take in serious and not to stop or not to take action against them.due to take huge bribe[amount]to builders,accourding builders mcd charges for 100mts one roof 1lac to 1.5 lac,minimum builders build 1st 4th floor so mcd earn 5 to 6 lac in one house.so, mcd show booked property 2019,action also taken and again they booked 2020,ackion has been taken,they show booked on 1st flooror 2nd floor now they building constructed on 4th+5th floor.so rwa has filed a writ petiton in high court nawab ganj residence welfare association v/s mcd & ors dairy no w.p[c]9333/2020.but after court order & direction to mcd no illegal construction going on.and mcd also told that if any illegal construction going on so we are taking action accourding law.but after court order mcd not take any action or not to stop illegal work.so why they should doing reason accourding me that only taking bribe.