Company & partnership firm of same group have same bank a/c

Can anyone let me know if a company and partnership firm be joint holder of same bank account.

Individual can be the joint holder but artificial person cant become joint cowner of bank account

Suppose I am a CA group and I have 1 PS firm from which I raise invoices for providing audit services and 1 company from which I raise invoices for consulting services. 

However a client has paid entire amt of different invoices in the bank account of the company.

Then how will I show income of the partnership firm?

TRANSFER THE CASH /BANK TO FIRM FROM THE ACCOUNT OF THE COMPANY. pLEASE NOTE CO. INCOME SHOULD BE ASSESSED ON ACCRUAL BASIS.

Also how will the TDS be deducted?

TDS SHOULD BE CONSIDERED ON INDIVIDUAL INVOICES RAISED BY TWO ASSESSEES I.E PF AND CO.ACCORDINGLY MINIMUM THRESHOLD SHOULD BE CONSIDERED.