1. My uncle was just living there, since my grandfather allowed him to and their is no proof that the he lived on that floor. He neither was paying any rent nor does he have a legal right, since the house is under my fathers name now.
Also, he just has some old cupboards and a television and some really old furniture lying in the floor in which he lived. The floor hasn't been opened for roughly a year and he doesn't even come for any maintenance.
So, why can't I just break the lock since, it is my property?
You have been advised that it is an illegal act, further it is your choice.
2. Me and my family don't want to proceed to filing a suit since it is a family matter, we will if, need be. But, I want to ask if there is any way by which without going to court we could break the locks. I have heard about some police procedure which could be followed to vacate the house. Is their anything like that? If there is, can i not use it?
You are getting lot of advises out of the legal frame but none will protect you if he is taking a legal action against you.
3.If an eviction suit is filed, is there any chance that I might actually loose it and the court may order against my decision and allow him to retain that floor?
If you have proper title documents and merits in your favor you will certainly win the case.
4. Can a legal notice be served to him? Will their be a punishment if he doesn’t obey court’s orders?
Yes, you can issue a legal notice on hi. If he is not obeying court order, he will face the music of law.
5. I am building another floor on top of the first floor, I hope their is no problem with that and, this won't be a problem by any means, if I file for eviction.
This is irrelevant to the eviction suit
6. Is it better to file a possession suit or an eviction suit?
Eviction and possession.