Bescom Transformer charges

[rmahi99]

Hi,
I am constructing residential units for about 60sq. As per BESCOM rules, this building needs to have transformer. I would need about 33KW for the whole building, so Electric contractor says I would need 63KVA transformer. Can anybody who has installed transformers, please answer below questions.

1) Is it possible to get 50KVA transformer?
2) What could be the BESCOM charges (incl all) for getting the transformer sanction and meter chgs etc?
3) Is it allowed to purchase transformer from outside or only through BESCOM vendors?

Regards,