Indraprastha Gas Limited [IGL] — png gas connection and misbehave service engineer

My name is ashirwad agarwal. My flat number f-1301 is in golden palms, sector 168, noida. Currently my sister lives in flat with her family. I had applied for png gas connection for my flat 4 months ago but no action yet taken. Last week on 27/03/2018 the service engineer came in. He demanded ₹ 6000/-. When my sister asked the reason for asking ₹ 6000. He said that if you will give ₹ 6000/- then only we will install connection. When she refunding to give bribe of ₹ 6000/- then he went out and said i will not install the connection. We have already inform to mr. Dhirendra tyagi (Site manager) about him but he has taken no interest
I would like to ask you whether your service engineers behave this way with women, please take appropriate action against him and install my png connection with in two days., otherwise we will complaint on p. G portal and real estate development authority.

Thanks and regards
Ashirwad agarwal
Mo.[protected]