milege oriented bike

Dear Sir/Madam
I want to purcase a milege oriented bike.
My elder brother havev a Bajaj Pulser & my cousin have a Hero Honda Passion Plus.
They are getting the milege of 35-40 kmpl from Pulsar & 50-55 kmpl from Passion Plus.
I want to now that which one bike is better for me
Bajaj XCd,Hero Honda Splender NXG,Yamaha Glediator.
I appricaite your assurance that you claim the 109 kmpl on road but plz guide me.My daily joury is 40 km approx
With Thanks & Regards
Nilesh Parmar