I was not able to delete snapvault busy snapshot. I dont see any clone's with respect to the snapshot but i see there is DEDPUPLICATION enabled on this particular snapvault volume.
Thanks in advance.
See The Solution
Deduplication will not cause this issue. Refer the links below:
https://kb.netapp.com/support/s/article/ka11A0000001MFH/busy-snapshot-locked-by-snapvault (requires login)
Actually the snapshot was DUMP backup snapshot which was in locked state. As i understand it is a bug in netapp where after creating a DUMP cannot delete snapshot
View solution in original post