Who are the transformer oil suppliers in India?

In India, notable transformer oil suppliers include Indian Oil Corporation Limited (IOCL), Bharat Petroleum Corporation Limited (BPCL), and Hindustan Petroleum Corporation Limited (HPCL). Additionally, companies like Savita Oil Technologies and Nynas also provide high-quality transformer oils. These suppliers offer a range of mineral and synthetic oils that meet international standards for electrical insulation and cooling in power transformers.