Imperia Structures Limited Complaints & Reviews

"We would like to thank your entire team for making the building of our home a joyful experience. Every employee was professional and willing to help. From our first meeting to closing we were impressed with everyone that we dealt with. We were especially amazed at the speed and the craftsmanship with which our home was built. Thank you for making the building of our home such a great experience."...

Dear Sir,
I am talking about the real estate in vadodara. Why people are asking more money (as black money) for the house they are selling. The govt valuer estimates X-price and owner asks for X+black money. What are the steps to prevent this type of black money business? Is it possible in India?
Answer please.
Thanks...