Tvs Motor Company — tvs jupiter - speedometer not working

Address:

Sec 12A, 122001

I just bought a tvs jupiter from showroom opposite maruti udyog at old delhi road and amount was paid in advance on 22/8/2019. Due to my busy schedule, team told that they will deliver the vehicle at my home address.
On 23/8/2019, i got my vehicle and was told that bills and paperwork will be done at evening and the delivery boy left the place.
To my utter surprise, the speedometer was not working... I have already raised a complaint at showroom.
I need a proper justification as why the meter was not working? How will i know how many kms and at what speed the jupiter was used?
As per the rules, a new vehicle speed limit should not be above 40 and first service should be done within 500-650 km.

Who is going to take responsibility if something happens to the engine in future due to your negligence?
I need a proper response or i will take it to next level.

Regards
Dr sana