Thank you all for replies..
Actually yesterday doc here advised below tabs for one month.

I have purchased the below tabs and my father went to home town now.

Tab Geftinat ==> 250mg daily ( 0-1-0)
Tab Methotrexate ==> 2.5mg (Mon to Fri) (0-1-0)
Tab Calcium Leucovorin ==> 15 mg (Sat and Sun) (1-0-1)

Kindly advise.

Thanks
Rahul