Hello Pavan,
Let say Host1 is the primary system and Host2 secondary system.
If you recover primary system to a point of time, you need to stop the secondary system for the time that the primary system is being recovered.
The offline secondary system must be registered again to reinitialize system replication.
For more detailed information, please refer to Point-In-Time Recovery of Primary System within SAP HANA Administration Guide.
Regards,
Ning Tong