Section 297 of the Companies Act, 1056 is applicable if one partner is partnership firm is relative of director. Such section not talking the relation about proprietor. So as per my under standing this section will not apply to proprietorship firm.
1. Giving or taking loans. 2.Contract in respect of immovable property (as it is not 'good' ).{Letter No. 9/4190-CL-X dated 27.03.1990}. 3.Contract between two public Companies. 4.Contract of employment of director or managing or whole time director.[ Circuler No.8/11/75-CL-V dated 27.03.1975] 5.Contract for employment of relative of director. 6.Contract entered into by the company with the dealer on principle to principle basis. [Circuler No. FM 8/297/56-PR dated 02-08-1956] 7. Professional services of the nature given by firms of solicitors and advocates, etc.[circuler No. 8/11/75-CL-V dated 05.06.1975] 8.hiring of office premises on rent as the transaction is in immovable property. [Department Clarification dated 10-09-1990]