Customs exemption for RNTCP imports contingent on health ministry certification; duty relief for specified anti tuberculosis drugs and diagnostics. Exemption from customs and additional duties is granted for specified anti-tuberculosis drugs and diagnostics/equipment imported for the Revised National Tuberculosis Control Programme funded by the Global Fund, conditional on presentation at clearance of a certificate from an officer not below Deputy Secretary in the Ministry of Health and Family Welfare confirming requirement for the programme; the exemption relieves the whole of applicable customs duty and additional duty under section 3, subject to temporal qualifications and later rescission.