Answer : 4. "रक्षा मंत्रालय"
Explanation :

The Defence Research and Development Organisation (DRDO) sanctioned seven new private sector projects under the Technology Development Fund (TDF) scheme. Established to promote self-reliance in defence technology under the ‘Make in India’ initiative, the TDF is a Ministry of Defence program executed by DRDO. It supports MSMEs and startups, providing up to 90% funding for projects costing up to INR 50 crore, with a maximum development period of four years.