Indraprastha Gas Limited [IGL] — Delay in new connection installation

I m M M Mishra, I stay in Kothi no C 181 Sector 52 Noida, I have PNG conection in ground floor, I applied for new connection in my first and second floor also around 15 days back, immediately required documenst and cancelled cheque was collected, but there is no response as to when will they install the connection..Pls help
My no is [protected]/[protected]