(A) Specific Relief Act (47 of 1963) , S.13(1)(a)— Rights of purchaser - Suit for declaration of ownership and injunction - On the ground that defendant entered into contract with plaintiff to sell property in dispute - During pendency of suit, patta granted to defendant and defendant became title holder - Agreement of sale in respect to suit property is still subsisting between plaintiff and defendant - Plaintiff can ask for grant of a decree of specific performance of contract in view of S.13 - S.13 is based on the doctrine "feeding the grant by estoppel". (Para 7 8) (B) Civil P.C. (5 of 1908) , O.6 R.17— Amendment of plaint - Proposed amendment is based on subsequent events - On basis of subsequent events even relief clause of plaint can be amended. (Para 9) .....