Answer : 4. "Captain Bana Singh"
Explanation :

Recently the Directorate of Rural Sanitation, Jammu and Kashmir has announced the nomination of country's highest gallantry award winner, Param Vir Chakra recipient, Captain Bana Singh as the Ambassador for the 'War Against Waste' in Jammu and Kashmir. The theme of the Swachhata Hi Seva (SHS 2023) campaign is ‘Garbage Free India’, with a focus on the visual cleanliness and welfare of Safai Mitras.