To identify the committee responsible for the basis of criminal law post-Nirbhaya incident:
1. Following the Nirbhaya gang rape case in December 2012, the Justice Verma Committee was constituted to recommend amendments to criminal laws.
2. Its report, submitted in January 2013, led to significant changes, including stricter laws on sexual offenses under the Criminal Law (Amendment) Act, 2013.
3. The other committees did not specifically address the Nirbhaya incident.
Therefore, the correct answer is (1) Justice Verma Committee.