Hey @Mukesh Kumar I am sharing as per my experience βonlyβ:
1. completion of each year for all roles
2. upto 30% of annual gross salary
3. no pre-payment
4. terms for forfeiture include not in good employment standing condition
5. no partial payment
The above mentioned are general cases. There have been a rare few exceptions in 1 & 2 only, factoring the criticality of the role and business impact in all spheres,;rest have been the same.
I encourage others to share their experiences too.