SEBI has given its approval to four firms—Kent RO Systems, Karamtara Engineering, Mangal Electrical Industries, and Vidya Wires, for raising funds through IPO. The firms had filed their preliminary IPO papers in January and may together raise around ₹2,500 crore. Kent RO IPO is entirely an offer for sale (OFS) of 1 crore equity shares by its promoters.