How to recovery the vehicle seized in transporting the "ganja".

If you want to release your vehicle, then file an application under Section 457 Cr. PC before the Jurisdictional Magistrate. Court will call for a report from the concerned police station.

Submit all the relevant documents like Registration Certificate, Driving Licence, Insurance certificate etc.

Actually, the Police will decide whether property they have seized will be used as evidence by the Prosecution or not.

The Police will hold your property until all relevant matters have been dealt with. Sometimes this may be until a case has been resolved; other times this won’t be until after any possible appeal has been completed.

Yes, you have to move application  u/sec 457 of Cr.P.C before Magistrate Court and Court may release  the vehicle or not will depend on report of police.

I agree with experts, nothing more.