Detailed Explanation:

Operation Sadbhavana is a unique initiative undertaken by the Indian Army in Jammu & Kashmir and the North East regions. It focuses on winning the hearts and minds of the local population through various developmental activities and assistance. This includes providing education, healthcare, infrastructure development, and promoting skill development initiatives.

Let's look at the other options:

• Operation Sankalp was launched by the Indian Navy to ensure maritime security in the Persian Gulf and the Gulf of Oman.

•  Operation Maitri refers to the Indian Armed Forces' humanitarian assistance and disaster relief operations to assist friendly countries. A notable example was the aid provided to Nepal during the 2015 earthquake.

•  Operation Madad is the Indian Navy's effort to provide humanitarian assistance and disaster relief during natural calamities, both within India and to neighboring countries.