Ketan Many thanks for taking the time to check the adaptors. The BT30 to Morse No.2 adaptor looks ideal.
Michael I did look at the links you posted and there are indeed four threaded holes in the drive face of the mill spindle. It seems to me to be a lot of work to make a custom adaptor that would still require the Int 30 taper to ensure centralisation of the tooling when 'off the shelf' solutions are available. I think the drive flange on the Int30 taper would partially obscure the four holes so they are not ideally positioned to hold the tooling in place.
Bob