Answer : 3. "Ministry of Consumer Affairs and Food Distribution"
Explanation :

India has become the 13th country in the world that can issue internationally recognized OIML (International Organization of Legal Metrology) certificates. OIML is an intergovernmental organization established in 1955. It has 63 member countries and 64 associate members and India became its member in 1956. India has now become the internationally accepted OIML certificate issuing authority to sell weights and measures anywhere in the world. The Department of Consumer Affairs can issue OIML Pattern Approval Certificate.