Step 1: Understanding the Question:
This question tests knowledge of pesticide legislation in India.
Step 2: Detailed Explanation:
The Insecticide Act in India was passed in 1968.
It regulates the import, manufacture, sale, transport, distribution, and use of insecticides.
It was enacted to ensure the safety and efficacy of pesticides.
Thus, the correct year is 1968.
Step 3: Final Answer:
Thus, the Insecticide Act in India was passed in 1968, which corresponds to option (C).
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