What is the responsibility of the Ministry of Home Affairs?

The responsibility of the Ministry of Home Affairs primarily revolves around ensuring internal security and formulating domestic policies. This includes overseeing law enforcement agencies, coordinating disaster management, and addressing issues related to internal threats, such as terrorism and communal violence. The Ministry plays a crucial role in maintaining the integrity of the nation's borders and the safety of its citizens.

In contrast, other roles mentioned in the options are the domains of different ministries. For instance, regulatory oversight of the corporate sector falls under the Ministry of Corporate Affairs. Tax policy and revenue collection are typically managed by the Ministry of Finance, while the management of government investments and public assets usually falls under the purview of other specialized ministries or departments. Thus, the correct answer accurately reflects the specific responsibilities assigned to the Ministry of Home Affairs, highlighting its role in protecting citizens and maintaining law and order within the country.