About Drumstick correct method

Please tell me the correct method For Drumstick, seeds are directly sow in the soil or plants should be grown separately before Cultivation?

Best to have them in bags before transplanting. The reasons are

  1. Time reduction in watering, manuring etc.
  2. Pests can be managed by observing in a small/closed environment and appropriate remedy can be applied
  3. Have 10% more bags just in case few saplings die
  4. Transplant once the roots start coming out of the bag or the plant is 4-5 ft tall.

Padmanabhan Ganesan