Consider the following pairs regarding the Nutrient-Based Subsidy (NBS) Scheme and India's fertiliser subsidy regime:

Pairs

1. Urea — Covered under the NBS Scheme; subsidy linked to nutrient content
2. Di-Ammonium Phosphate (DAP) — Covered under the NBS Scheme; additionally receives special provisions to maintain a fixed retail price
3. Single Superphosphate (SSP) — Covered under the NBS Scheme; promoted as an affordable alternative to DAP through a freight subsidy