Hello Shankar,
Please do not confuse between SAP Kernel and SWPM Kernel.
You can start your installation through SWPM files. 70SWPM (for NW 7.4 , EHP7 or HANA) or SWPM - (NW 7.3, EHP6 ).
You should use right kernel for the installation like for NW 7.4 Installation we can use 7.41 Unicode kernel media.
Regards
Pranay Agarwal
