Yes. There are early yield (from first year), dwarf varieties of Drumstick. We can provide complete consultancy services including supply of saplings to marketing of products (possibility of buy back for dry leaf and drumstick-pods, dried drumstick, seed, powder etc-it is not contract farming, only buying assurance and you have freedom to sell to any one if higher prices available compared buying assurance agreement prices) Please see our details in diverse posts in this site: Well Known Member: greenlandfns.
In normal mango farms, you can plant around 800-1200 dwarf Drumstick plants in an acre based on gap space available and also considering age of mango trees and shade levels etc.
Please mail us your mango farm details, land details, photographs of mango plantation showing gap space available, and your farm location and your contact details to E:
greenlandfns@gmail.com