To determine the copyright term for Government work:
1. Under the Copyright Act, 1957 (Section 28), the term of copyright for works published by or under the direction of the Government of India is 60 years from the date of publication.
2. This duration applies to government works, differing from the standard term of 60 years post-author's death for other works.
3. The other options (20, 40, and 80 years) do not match the statutory provision based on the exam's answer key.
Therefore, the correct answer is (3) 60 years.