Profitable flower crop in Hyderabad

Hello All,
Request your inputs and suggestions. I want to try growing flowers on a small part of the farm, maybe 10 Guntas:

  1. I am ready to plant it now in December,
  2. I have one farm hand only, so lesser maintenance after planting is preferable. I can try to reduce effort by doing drip irrigation.
  3. I am open to both perennial or annual flower varieties.
  4. I was reading about Marigold, Chrysanthemum, Rose, Jasmine etc. But are there specific commercially viable varieties among these also?

Regards,
Aravind