Solution:India ratified the ILO Labour Inspection Convention (No. 81) in 1949, which is not among the given options (1945, 1946, 1947, 1948): The correct year of ratification is 1949, so none of the listed options is accurate.
• The Labour Inspection Convention, 1947 (No. 81) is the main ILO instrument on labour inspection in industry and commerce.
• Official ILO and Government of India records clearly show that India ratified Convention No. 81 on 7 April 1949.
• Since 1949 does not appear in the choices (1. 1945; 2. 1946; 3. 1947; 4. 1948), the objectively correct response cannot be matched with any option.
• For that reason, the answer must be treated as NONE, with the accurate year stated as 1949.