A is the owner of a flat on first floor B is the owner of the ground floor .B has intention to remove partition wall of ground floor and A has apprehension because of removing walls the first floor can be damaged .A has filed permanent prohibitory injunction suit against B and court has granted temporary injuction against B not to remove wall till the next date and injuction is extended time to time .Now A has sold the flat on first floor to C How A can be deleted and C can be impleaded in the suit