Vgn Property Developers — poor security system

My name is rajendran from vgn stafford (L-104). Yesterday, there were technicians from tata sky fixing a dish for a resident living in l-101. The technician from tata sky cut my cable connection to test another connection for the resident. I knew this as i went directly to them to ask if they had anything to do with it, in which the technician agreed it was him. The technician refused to reconnect my cable connection.

He also refused to give me his name and was very rude. As i called tata sky to file a complaint, they requested for his name. I went to vgn stafford's main gate security to ask for the visitor's registry, the security mentioned that they did not file the technicians name and told me to visit vgn stafford office.

I went to the office and they told me that they can't do anything as the technician's name was not registered by the security guards. The security system in vgn stafford is not up to standards and has caused me great inconvenience.

Who would take responsibility of this situation? How shall i resolve this issue?