S. 92C : Transfer pricing-Arm’s length price-Management fee-Documents filed to justify and availment of services have to accept value of management services as claimed by assessee-Functional similarity-Assessee involved in advertising agency, data not available in public domain for comparability of business support system segment of said company, it could not be compared to marketing support service provider-Income from exhibitions and events, should be excluded from comparable list to marketing support service provider.