You required two legal Certificates to set-up this plant-
a. SSI (Small Scale Industry) Certificate.
b. NOC (No objection Certificate) from PCB (Pollution Control Board)
As such there is no problem to get the NOC i.e consent to establish from Pollution Control Board, but it also depends in which state you want to set up this project.
Here is the article by Divya International which shows the closure notice if you set-up the plant without NOC from Loacal PCB.