Sorry Ravindar but that's incorrect. Please reference SAP Note 2000003 - FAQ: SAP HANA.
23. Can SAP HANA always be upgraded directly, even if there is a significant
gap between the source and the target level?
In general SAP HANA can be upgraded from any source level to any target level
without an intermediate step. Exceptions are:
- Source level with SPS2 or below
- Exceptions mentioned explicitely in the related SAP Note (e.g. SAP Note 2020199: rev.64 to rev.66
when upgrading to SPS8)