Match important projects in List-I with the area of implementation in List-II and select the correct answer using the code given below:

List-I (Multipurpose Projects in India)	List-II (Area/Place of Implementation)
a. Tungabhadra Multipurpose Project	1. Lower Narmada Valley, Gujarat
b. The Sardar Sarovar Project	2. Nalgonda district, Telangana
c. Nagarjuna Sagar Project	3. Andhra Pradesh and Karnataka
d. Bhakra Nangal Project	4. Punjab, Haryana, and Rajasthan

The Correct answer is Option 3. 

Key PointsThe correct matches are:

• a → 3 (Tungabhadra Multipurpose Project → Andhra Pradesh and Karnataka)
• b → 1 (Sardar Sarovar Project → Lower Narmada Valley, Gujarat)
• c → 4 (Nagarjuna Sagar Project → Punjab, Haryana, and Rajasthan)
• d → 2 (Bhakra Nangal Project → Nalgonda district, Telangana)

Thus, the correct answer is Option 3: a b c d → 3 1 4 2.

Additional Information

• Andhra Pradesh and Karnataka (The Tungabhadra Multipurpose Project is located in the Tungabhadra river basin, covering areas in both Andhra Pradesh and Karnataka.)
• Lower Narmada Valley, Gujarat (The Sardar Sarovar Project is primarily implemented in the Lower Narmada Valley, Gujarat.)
• Punjab, Haryana, and Rajasthan (The Nagarjuna Sagar Project is primarily aimed at irrigation and water supply in parts of Punjab, Haryana, and Rajasthan.)
  
• Nalgonda district, Telangana (The Bhakra Nangal Project benefits areas in Punjab, Haryana, and Rajasthan.)