Dear Aspirant,

First of all none of field is good or bad.In today's scenario every field has future if you know about the correct career path what you want to achieve in your life.

Agricultural Engineering is a composed of different elements  like Electrical, Mechanical, Civil,Chemical and Computer Engineering, along with Agriculture science.Agriculture includes agronomy, animal husbandry, horticulture, floraculture, aquaculture, silviculture etc .You have to study different subjects of different branches.You can go in various field after agricultural engineering like

CIVIL SERVICES : Finest option is preparation for civil services in that you can choose IAS, IPS or else go for IFoS where u can choose Agricultural Engineering as an optional subject for mains exam.

POST GRADUATION : If you are interested in higher studies, you can go for M.Tech, MBA or MS.
MTech : Prepare for GATE, JRF or State level PG entrance. After GATE you can choose any IIT
MBA : If you are interested in management studies choose this option. Crack CAT and get admission in IIMA, IIML, Manage hyderabad, NIAM Jaipur and many more. Here also you have good opportunity to choose MBA in Agri Business Management with sufficient percentile in CAT.
MS : Crack GRE with score more than 300 or crack IELTS with 6.5 and you can get admission in good universities like McGill, Cornell and many more.

PRIVATE JOBS : After B.Tech in Agricultural Engineering, you have opportunity to go in private sector in core as well as IT sector.
In core sector best option is tractor industry like John Deere, M&M, TAFE and many more. Second option is irrigation companies like Jain Irrigation, Netafim , Mahindra EPC, Halmark etc. Beside above mentioned companies few fertilizer companies, food processing companies and NGOs prefer an Agricultural Engineer

GOVT JOBS -After post graduation in Agricultural Engineering you have option of Asst. Prof in state university as well as some deemed universities.

BANKING JOBS- After btech in agricultural engineering if  you are interested in bank than you should prepare for the IBPS as there is special quota for agriculture ,you can also appear exam like nabard,bank agriculture field officer for bank,Central Bank of India also provide job of Agriculture Finance Officer.

Hope it is helpful