What a number plate can and cannot tell you
Vahan is the national vehicle-registration system run by the Ministry of Road Transport and Highways. Online access and available fields depend on the service, authorisation, and digitisation of the underlying record.
Available records may include make, model, class, registering RTO, registration date, fuel type, insurance, PUC, fitness, hypothecation, and permit details. Missing or stale fields need follow-up with the relevant source rather than an assumption that every record is complete.
What does not come back is the person. Owner personal details are masked, deliberately, and any service claiming to return a name, phone number or address from a plate is either misrepresenting what it does or should not be doing it. Treat that as a signal about the vendor.
For a fleet this is the right trade. You are confirming a vehicle is legal to load, not building a file on its owner. See what Vahan is.