Answer : 2. "Home Ministry"
Explanation :

Recently, Bureau of Police Research and Development (BPRD) has issued a warning about scams on WhatsApp. Established in 1970 under the Ministry of Home Affairs, the BPRD aims to address the needs and challenges of policing. It conducts research, suggests solutions and remains updated on science and technology. Additionally, it helps modernize state police forces and correctional administration. Originally with two divisions, it later added a training division in 1973 and now oversees the national police mission.