Some of the JD's after MSc Agriculture are:

• Research Officer
• Quality Assurance Officer
• Agriculture Officer
• Agriculture Loan Officer (in Banks)
• Production Manager
• Operations Manager
• Farm Manager

The average salary may vary from experience to the knowledge. But in general for a fresher the annual packages are Rs. 3LPA to 4LPA. This increases gradually with experience.

I hope my answer helps. All the very best for your future endeavors!