Hero Motocorp — bike passion xpro - average issue

Address:

313002

I have purchased the said bike on 11th april 2016, model passion xpro
Regn. No. - rj27ba1530
Eng# - ja12abggb10377
Vin - mblja12aeggc00117

From beginning from 1st service i am complaining about the bike average. At the time of purchasing i have been told that bike average will be 74 km. Per litre.
But bike is giving average below 50 km. Per litre. I raised this issue with service centre, udaipur (Raj.) [royal motors] every time whenever i went for bike service.
But everytime they assured me that we are setting the average and it will be ok now. But after 7 service of bike the problem is still there. Average is coming below 50 km. Per litre which is too low.
And due to this problem i am suffering from extra expenses on monthly basis.
Please look into the matter and do the needful on urgent basis. Otherwise i have to go in consumer forum.

Thanks
Girish mehta
33, nirmal vihar, sector 3
Hiran magri, udaipur (Raj.) 313002
[protected], [protected]