I applied online. I interviewed at Hardcarb Technologies (Navi Mumbai)
Interview
They seems to mostly take interns who are willing to work hard for peanut salary just for the experience. As it is a family run business the scope for growth in the organisation seems very limited.
This place would be good fit for learning but is not suitable for career growth.
Interview questions [1]
Question 1
Display programming for STM32. PCB designing and fundamental embedded systems.