Ahmedabad Airport — No parking zone charges

I have parked my car on side for help other person and there is not any board and details for no parking area zone. While I was discussed with people for what I can help them private parking management person sealed car and asked 1000 penalty. There are many other private car and auto stand on middle of way but not taken any action on them but my car was on parked on side. I have all proof of video of my car parked and other stand vehicles. I told them I stand for help and also in my car senior citizens seated but they demanding 500 rupees without memo. they aware I will pay him due to senior citizens. it is very shameless and misleading. This kind of guys is down our country value. Even not any board there for no parking. I asked them here not any board and they replied we have board at circle. Circle is 150 meters away where I parked car.