Hello Raj,
Would like to hear more about your employer and job profile, I have overall 15 yrs of exp in IT and since past 15 yrs I was based in China.
About Hana, is it must to know BW,BODS and admin modules as well? What I have experienced is BI + HANA is good combination.
Ya, currently I also dont see much of Hana jobs, maybe time will tell if Oracle or IBM doesn't come up with something similar.