Honda Cars India Ltd. — regarding rto penalty , late file submission by showroom for temporary registration

Sir,
it is humbly requested that i have purchased a new honda city car from vibrant honda showroom aligarh district aligarh on dated 16/10/2018
but when file was submitted to local rto kasganj after receiving temporary registration from showroom a penalty of rs 3500=00 is generated and was demanded by rto kasganj . On query it has to the notice that due to the fault of vibrant honda showroom aligarh this penalty is generated but the showroom dealer is not accepting there fault and behaved very rudely and after calling several times they received the call. This showroom has totally harassed me and still not accepting there fault in delay submitting of temporary registration file in rto aligarh
kindly pay attention on this issue urgently