Prostarm Info Systems Secured An LOA From SAIL for ₹6.71 Crore. Prostarm Info Systems Ltd, a leading UPS & inverter manufacturer and supplier in India, on Friday, March 13, 2026, said that, The Company has received a Letter of Acceptance (LOA) from SAIL (Steel Authority of India Limited), a domestic entity. Source – BSE… Continue reading Prostarm Info Systems Secured An LOA From SAIL