Registration Query

All
I have a series 2 LI150 which has a SIL200 engine, it has a reg number JRO 529K and listed as Indian 1972.
I was out last weekend and was asked why it had a K registration, my response as I have been led to believe is that it was put together in India using parts they had and as such one of the very last they did before turning out the wonderful SIL GP's, am I correct?
When Bedlam Scooters imported it they did the initial registration with the Lambretta Club, does the registration number go against the frame or the engine as I believe that the frame is actually older than 1972 but I could be wrong! Frame number is 118090-150Li and engine S602*118682
Any Ideas on this would be helpful in determining history
Lee
I have a series 2 LI150 which has a SIL200 engine, it has a reg number JRO 529K and listed as Indian 1972.
I was out last weekend and was asked why it had a K registration, my response as I have been led to believe is that it was put together in India using parts they had and as such one of the very last they did before turning out the wonderful SIL GP's, am I correct?
When Bedlam Scooters imported it they did the initial registration with the Lambretta Club, does the registration number go against the frame or the engine as I believe that the frame is actually older than 1972 but I could be wrong! Frame number is 118090-150Li and engine S602*118682
Any Ideas on this would be helpful in determining history
Lee