Thank you everybody for the update and photos, a shame it had to suffer that way, one mother of a car. The mechanic I mentioned is the chap in the pink shirt who is present in some of the photos though obscured from view. The car must have come from the Darbhanga collection. I remember going to see the Jaguar (wasn't it a SS100?) at Chetan's house in Pusa Road. They used the same cylinder block as the Standard Vanguard.
Apologies for intruding on your Gondal thread DKG
but it is a magnificent car with Royal history. Maybe a "Royal Daimler" as they were known.
The chap in the foreground of this last photo was an "electrician" called Trilok who was working at one car collection I worked in for many years.