CJP leader Saurav Das will host a Diwali party on October 31, with TMC, CPI(M) and AAP leaders expected amid growing Opposition engagement. Cockroach Janta Party (CJP) co-convenor and spokesperson Saurav Das is set to host a Diwali gathering on Saturday, October 31, with several Opposition leaders expected to attend. The invitations come amid signs of increasing engagement between the CJP and parts of the Opposition.