Many state and local centres of Institution of Engineers are conducting coaching for AMIE examination but There is no organised classroom coaching available for preparation of AMIE exams. Reason is very simple, most of AMIE aspirants are in jobs and hence no time in working days to attend classes. For tutions, you have to make your own search to find a good teacher (a polytechnic teacher will be best for fundamentals, an M Tech/Ph.D student will give you best services).
However, you may visit a forum AMIE India to search classroom courses for AMIE exams. Click at