Sabja (sweet basil seed) can be grown in India with little water and little spray, but no Indian research paper found gives a seed yield close to the 6 to 8 quintals per acre that farming guides quote. The one controlled trial located (CSIR-CIMAP, Pantnagar) recorded 173 to 211 kg per hectare, or about 70 to 85 kg per acre, so sabja is a crop to try on a small plot with a buyer lined up, not to plant in bulk on a promise.

Sabja is the seed of Ocimum basilicum. It is not chia, which is a different plant (see chia seeds), and it is not holy tulsi (Ocimum tenuiflorum).

Where it grows in India

  • Sweet basil is grown in India mainly for its essential oil (CSIR-CIMAP varieties) and as a herb; sabja seed is a side market. This research found no official state-wise area or production statistics for sabja seed, so ask your KVK, state horticulture department or the nearest sabja trader which districts supply the market.
  • Trial sites: CIMAP Pantnagar (Tarai, Uttarakhand, sandy loam, pH 7.2), Mandsaur (Madhya Pradesh, germplasm trial), and CCS HAU Hisar (semi-arid Haryana, 40 genotypes).
  • Climate and soil: a farming guide gives 16 to 26 degrees C as the optimum, with red sandy loam best, moderate drought tolerance and no tolerance of waterlogging. CIMAP notes long days and high temperature favour growth.
  • Season: the guide gives June to July (kharif) or September to October (rabi) sowing and 4 to 5 months to harvest under rain. The Pantnagar trial transplanted seedlings in late July and the crop took about 110 to 119 days to mature.

Varieties and planting material

  • No released variety bred specifically for sabja seed was found. CIM-Saumya, a CIMAP oil-type basil, was used in the Pantnagar seed trial. A Mandsaur trial of 20 ICAR-AICRP germplasm lines found one line, IC-0622536, gave the most seed (29.57 g per plant) in that test; these lines are research material, not seed you can buy.
  • Seed quality for sabja means clean, uniformly black seed that swells well in water. Ask your buyer what they test for before choosing seed.

Sowing and spacing

  • Seed rate: a farming guide gives 1.5 to 2 kg per acre (3.7 to 5 kg per hectare) for direct sowing. CIMAP raises nursery seedlings and transplants at the 3 to 4 leaf stage.
  • Sowing date matters: in the Pantnagar trial, 23 July transplanting out-yielded 8 August by about 21%.
  • Spacing: wider spacing gave more seed because each plant carries more flower spikes:
TreatmentLevelSeed yield (kg/ha)Notes
Sowing date (CIM-Saumya, 50 x 30 to 50 x 60 cm)23 July210.7Taller plants, 118.7 days to maturity
30 July184.0115.7 days
8 August173.3110.7 days
Spacing (row x plant)Seed yield (kg/ha)Plants per acre
50 x 30 cm176.7About 27,000
50 x 45 cm186.7About 18,000
50 x 60 cm204.7About 13,500

Nutrition and irrigation

  • Trial dose: 100 kg N, 40 kg P2O5 and 40 kg K2O per hectare (about 40, 16 and 16 kg per acre).
  • Farming guide: 4 tonnes FYM plus 36:16:16 kg NPK per acre under irrigation (about 89:40:40 per hectare). Treat this as secondary.
  • Water when the soil dries; the crop is drought tolerant but cannot stand water around the roots. Keep the field weeded (the trial used hand weeding) and confirm irrigation timing with your KVK.
  • Pests and diseases are not a major problem in the sources reviewed. If leaf spot or insects appear, follow the label and ask your KVK, since the seed is eaten.

Harvest and yield

  • Harvest at physiological maturity when the plants turn yellow and the spikes dry. Cut, dry on a clean sheet, thresh gently and winnow. Keep the seed clean and dry, as buyers pay on cleanliness.
  • Trial yield: 173 to 211 kg per hectare (about 70 to 85 kg per acre) in the Pantnagar trial. The best treatment gave 210.7 kg per hectare from early sowing, and 204.7 kg per hectare at 50 x 60 cm.
  • Farming-guide yield: 6 to 8 quintals per acre (about 15 to 20 quintals per hectare), with a possible ratoon crop 3.5 months later. This is about seven to nine times the trial figure and no Indian trial supporting it was found; do not budget on it until a local grower shows the harvest.

Cost and returns

  • Price: a farming guide quotes ₹10,000 to ₹12,000 per quintal (₹100 to ₹120 per kg) for seed and retail ₹350 to ₹500 per kg. No Agmarknet mandi price for sabja seed was found. Ask a trader for the current quote and grade requirements.
  • Costs: the guide estimates ₹21,780 per acre including a 10% contingency (secondary source).
  • Arithmetic, two cases: (a) guide yield 7 q x ₹10,000 to ₹12,000 = ₹70,000 to ₹84,000 gross, about ₹48,000 net as the guide calculates. (b) trial yield 70 to 85 kg x ₹100 to ₹120 = ₹7,000 to ₹10,200 gross, which does not cover the ₹21,780 cost. The real outcome sits between the two, and the gap is the main risk.
💡 Tip: Grow a quarter acre first, weigh your own harvest, and have a buyer test the seed before you scale up. Buy-back promises tied to expensive seed packets deserve extra caution.

Market and risks

  • Sabja goes to falooda and sharbat makers, ayurvedic and health-food sellers, and exporters. A farming guide says about 1,500 tonnes a year are exported, mainly to Arab countries (a secondary figure). See export buyers.
  • Small niche seed markets can fall when many farmers plant after a high-price year. Ask traders how many tonnes they actually handle.
  • Groups of growers can aggregate through an FPO. No verified subsidy rate for sabja was found; ask your district horticulture office, or try the subsidy finder.

Sources