Central Seed Laboratory (CSL) is located in . . . . . . . .

Central Seed Laboratory (CSL) is located in New Delhi.
The Seed Testing Laboratory is located at the Division of Seed Science & Technology, Indian Agricultural Research Institute, New Delhi and has been notified as the Central Seed Testing Laboratory it was established in 1960.
The Seed Testing Laboratory is the hub of seed quality control. Seed testing services are required from time to time to gain information regarding the planting value of seed lots.