Tenant is not vacating the house

If you are not yet the owner then you cannot issue an eviction notice nor can take action to evict the reluctant tenant.

You clearly know that the seller cannot sell the SRA property within ten years from the date of allotment, you have to wait for the expiration of the stipulated period after which you get the property transferred to your name by a registered title deed, to enable you to take  steps for  eviction 

Issue legal notice to hand over peaceful vacant possession within 15 days of receipt of the notice, if tenant do not vacate file a case for eviction through a local prudent lawyer. 

One may be owner of premises but not landlord and similarly  it is not necessary  that landlord may  be owner of property but he may be landlord .One who receives the rent from landlord and issues rent receipts to tenant is considered landlord for tenant so If you have any proof of landlord and tenant relationship then you may initiate proceedings for eviction against him else not .