Is this not a monoply?

Dear Sir,
I just want to know if consumer is a king in India or is always at the receiving end. Through this letter I just want to know if there is any organization which will listen to me as a consumer as I got a bad treatment from a cable company.
I live in Panchkula (near Chandigarh) and the cable company of my area was having signal booster at the roof of my house. The cable company technicians used to check signal very often and used to disturb us a lot. Moreover after checking booster at the roof they used to enter the house to check the signal on TV. As cable comapny technicians never carried ID cards with them, anybody could have come as a cable company technician. As this was not safe, I asked the cable company technicians to remove the booster from the roof of my house. They not only removed the booster from the roof but also removed the cable wire from the roof for which I had already paid to them. They did not even tell me that they were going to remove the cable wire itself. When I was not getting my signal, I called them and they asked me to get the connection I would have to pay for the 20 meter wire. When I told them that I had already paid when I took my connection, I was told to pay again to get the connection. I think they did this to me not only to harass me but also to make me pay for removing the signal booster. As there is no other cable company in this area, they are having monoply in this area and showing the monoplistic behaviour.
Is there any organization which will look into this case? If this company is harassing me and asking for more money, there is possibility that they can harass others also to make more money as they have monoply in the area.

Inderjit Sethi