Are there any institutes which provide training & placement in industrial automation(PLC, HMI,Sensors)?
There are various such institutions, but they may not provide placement as well because short term or part-time courses do not have any such provision. You should keep track of the admission notifications of such courses and then research the institutions to assess what recruiters are associated with it, so that you know if there is any potential for recruitment. Your basic degree and your academic record would count for placement.
