Explanation:

Understanding the commencement date of a statute is crucial in legal studies, as it determines when the provisions of the law become legally binding and enforceable. The Arms Act, 1959, is a significant piece of legislation regulating the possession, manufacture, sale, and transfer of arms and ammunition in India. **Analysis of Options:** * **Option (1) 01 July, 1960:** This date is incorrect. While it falls within the period shortly after the Act was passed, it is not the official date of commencement for the Arms Act, 1959. Acts often have a gap between their enactment (receiving presidential assent) and their commencement (coming into force) to allow for the preparation of rules, regulations, and administrative machinery for implementation. * **Option (2) 01 October, 1962:** This is the correct answer. The Arms Act, 1959 (Act No. 54 of 1959) received Presidential assent on 23rd December 1959. However, it was brought into force much later, on 1st October 1962, by a notification issued by the Central Government in the Official Gazette. This delay was likely to allow the government to frame the necessary rules (Arms Rules, 1962) and establish the administrative framework required for the effective implementation of the Act across the country. * **Option (3) 23 December, 1959:** This date marks the day the Arms Act, 1959, received Presidential assent, meaning it was formally enacted. However, enactment is different from commencement. An Act comes into force on a date notified by the government, which can be the date of assent, a retrospective date, or a future date. In this case, the commencement date was later. Therefore, this option is incorrect as it refers to the date of assent, not commencement. * **Option (4) 01 September, 1961:** This date is also incorrect. It falls between the date of assent and the actual commencement date but does not correspond to the official notification for the Act's enforcement. Therefore, this option is incorrect. In conclusion, the Arms Act, 1959, became effective and enforceable across India from 1st October 1962, a date specifically notified by the government for its commencement.