1. Once you are impleaded party in main suit you can file an application for order 7 rule 11 to reject the suit.
2. The pending application of order 39 rule 2 shall be heard on merits by court and disposed.
3. See in the civil.court proceeding at this stage it won't be appropriate to go high court though you can take order to expedite the suit but it is not advisable to do so.