Right to live on grand father's ancestral property

First get a settlement deed of the property  in your favour, then  issue notices for vacating the property for personal use, and use village elders to bring pressures on the tenant as mutual relations are most important in a village.

you need to ask your father to partition the property and then if the rented premises falls in your share then you can issue legal notice to the tenants.

IF you get your father's permission (as the premises rented out by him and he recieves the rentals too) then you can file suit for eviction for personal necesssasity in the court on his behalf.

If u have no place to live in the city  where the premises is located you can get sucessful eviction, though that is too time consuming ;prefer to prssurize the tenants through your father.

Above Scenario where land record still in my Grand Father's name.

is Father's consent or signature required to issue legal notice to tenants for eviction as this Ancestral Property ?

you should file then partition suit and get your sares specified. Then you individually can deal with your share.SInce i told you that your father is managing the rented property and the tenants are depositing the rent in your father's account you need to get POA from your father to proceed in the matter forcefully. You can issue a legal notice or can file eveiction suit but your father being necessary party mut join in that as plaintiff. 

TYPO;; *read Shares instead of sares