Section 7(3)(o) in The West Bengal Clinical Establishments (Registration, Regulation and Transparency) Act, 2017
(o)that every clinical establishment shall strictly follow the fixed rates and charges including the Package Rates for investigation, bed charges, operation theatre procedures, Intensive Care, ventilation, implants, consultation and similar tests and procedures, and any additional treatment or procedure shall not attract additional charges over and above such fixed rates and charges including the Package Rates;