How to file complaint against illegal parking in neighborhood

1) Make a complaint against the abandoned vehicle. They will enquire and take away it if it's owner does not come forward .

2) you can make a complaint in area municipality for emitting​ odour smell in area due to heap of garbage under the vehicle. They will remove the garbage and clean the place.

You should make both complaints simultaneously​ with both the authorities.

Hi
FIle a nuisance case under section 290 of IPC against unknown persons in the police station and police will remove the car and keep it in custody of court.
It will be easy for police to trace the car owner by contacting Regional transport authority and recover costs if any.