Tempsens Instruments IPO opens today: GMP at 73%. Check key details and should you subscribe?

The thermal engineering and specialised cable manufacturer is looking to raise Rs 650 crore through the IPO, which will remain open until August 24, 2026. The issue comprises a fresh issue of 32 lakh shares worth Rs 95 crore and an offer for sale (OFS) of 1.85 crore shares worth Rs 555 crore.