Property dispute

How was the property got transferred to all the four brother's name , whether by any deed? if so what was the deed.

Without knowing any details, with the incomplete information no proper opinion can be rendered

"Uncle" is a very broad term used in contemporary times, you will agree. Be specific qua your relationship donating "uncle".

Show the document to a local prudent lawyer for appreciation of facts and professional advise.

Okay....uncle here refers to father's brother 

which  mode of transfer of property from your uncle. 

The Transfer of Property Act defines several modes of transfer of property. These include:

• Sale: Transfer of ownership for consideration.
• Mortgage: Transfer of interest in immovable property for securing repayment of money advanced or to be advanced.
• Lease: Transfer of a right to enjoy the property for a certain time, in consideration of a price paid or promised.
• Exchange: Transfer of ownership in exchange for another property.
• Gift: Transfer of property without consideration.

I need to check the property documents for this ....I have no idea as all these happened 25 years ago and my father is no more to ask the details 

The posting is too vague and lacks clarity. Please repost the facts in simple and logical manner.

Why property dispute? What is the issue in dispute? Who are the parties?

You can consult an advocate personally and proceed after the suggestions made by the advocate accordingly