Mumbai (Maharashtra) [India], March 25: KRN Heat Exchanger and Refrigeration Limited (NSE - KRN | BSE - 544263), is a prominent company in the heating, ventilation, air conditioning, and refrigeration (HVAC&R) industry. KRN HVAC Products Private Limited, a wholly owned subsidiary of KRN Heat Exchanger and Refrigeration Limited, has received approval and recognition as an Approved Vendor from the Ministry of Railways, Government of India. The approval pertains to the capacity cum capability assessment of the company, for the supply of Oil Cooler Radiators for Converter Transformers.