Consultancy fees or remuneration

Hello,

There are 3 partners (doctors) in partnership firm (hospital). Each one is special in different field. They take interest, remuneration and share in profit (if any) from firm.

Now they want to take consulatncy fees for their specific services (like surgery or other cases looked specifically by specialised doctor).

1. Whether Consultancy Fees would be allowed or will be termed as remuneration only?
2. If allowed then TDS u/s 194J would be required to deduct?
3. Tax treament for the same in the hands of firm & partners?

Thanks

Ritu