Hero Motocorp — registration of vehicle

Address: Satna, Madhya Pradesh, 485114

There complain about registration in my vehicle
My vehicle buy on 22 march 2018 on this day registration is an issue
But my registration is not delivered then inquiry for registration in hero motors satna but says your registration is check day to come on next day but my father is again going hero motors but again says next days there are 15 times
Why are not tell registration of the vehicle