Inplant training is very essential for students who are studying engineering. Because there is a lot of difference between what we have studied and what actually happens in the industry. Yes, every student should go for an industry to do Inplant training. After that try to go for an internship. Because you can learn more things by doing internship in the industry. Inplant training is about observing how the industry functions. What are all the processes are carried out.
Students usually Inplant training during their second year or third year vacation. There is no point attending after first year since you would not have learnt much about the subject then. In an Inplant training you will not be working in the company or organisation, but you will be going through various divisions and technologies available in the company