syllabus for agricultural biotechnology gate exam???

Dear Kotesh
I would like to give you smthe syllabus for GATE 2020 of biotechnology.
GATE 2020 for Biotechnology program will have questions from topics such as

• Engineering Mathematics,
• Biotechnology,
• Recombinant DNA Technology,
• Plant and Animal Biotechnology and
• Bioprocess Engineering and Process Biotechnology

As you asked specifically for agriculture, it will come under Plant and animal biotechnology.

• Totipotency Regeneration of plants; Plant growth regulators and elicitors; Tissue culture and Cell suspension culture system: methodology, kinetics of growth and, nutrient optimization; etc;
• Animal cell and tissue preservation; Anchorage and non-anchorage dependent cell culture; Kinetics of cell growth; etc

You can also check out AGRICULTURE ENGINEERING
The syllabus of this paper  has 6 section

• Section 1: Engineering Mathematics
• Section 2: Farm Power
• Section 3: Soil and Water Conservation Engineering
• Section 4: Irrigation and Drainage Engineering
• Section 5: Agricultural Processing Engineering
• Section 6: Dairy and Food Engineering

I hope this information helps you.

All the best.