Queries related to service tax

I request you to please help us out experts

Dear experts,

   1.  Is service tax applicable for brokerage of agricultural products?

   2.  Is  service tax applicable for brokerage of  raw cashew nuts ?

   3.  Is service tax applicable for brokerage  of   cashew kernals ?

   4. does cashew kernals and raw cashew nuts come under agricultural produces ? 

         we  would be of great help if you can answer these queries

Thanking you

Best regards

Anup