Explanation: Integrated Guided Missile Development Programme (IGMDP): It is a Ministry of Defence programme to research and develop missiles.

• The project was started in 1982–1983 under the leadership of Dr APJ Abdul Kalam. It accomplished its design objectives by 2012.
• The DRDO and erstwhile Ordnance Factories Board (OFB) managed the programme with other Indian government political organizations.
• Missiles developed under IGMDP are 1. PRITHVI 2. AGNI 3. TRISHUL 4. AKASH 5. NAG.

Source: FORUMIAS