Do not know names and addresses of co-owners of inherited joint property

You can file the suit for partition against the persons whose particulars are available. 

If at all any other person emerges as a co sharer at a later stage, you can include them then 

The property was purchased by the great-grandfather about 100 years back and is not partitioned to date. Did you obtain EC for the property?

The municipal records still show my great-grandfather as owner, property could not be mutated in municipal records since there was a suit pending in the courts for many years. Property was never mortgaged and there are no outstanding loans or cases.

What a surprise though the property was purchased 100 years back not mutated to date.  Which suit has been pending in court for many years and against whom?

Joint tenancy is a legal arrangement in which two or more people own a property together, each with equal rights and obligations.https://www.lawyersclubindia.com/forum/liabilities-should-also-be-car games-retrospective--232343.asp