Vijayawada: Former Union minister and former MP A Sai Prathap will join Congress on May 16. The followers of the leader also will join Congress along with him, said party general secretary Janga Goutam. He said on Monday that PCC president N Raghuveera Reddy and vice-president N Tulasi Reddy would participate in the programme in Vijayawada. Sai Pratham, a six-time MP from Rajampet Lok Sabha constituency, quit TDP on March 31 before the election, reportedly miffed over refusal of the party president, N Chandrababu Naidu, to consider his request for a ticket to his kin. Meanwhile, the Congress has postponed its proposed election review meetings which are supposed to be held in Vijayawada city on May 16 to May 19.