The Full Form of UCIL is Union Carbide India Limited.

Union Carbide India Limited (UCIL) was a chemical company established in 1934, eventually expanding to employ 9,000 people working at 14 plants in five divisions. UCIL was 50.9% owned by Union Carbide and Carbon Corporation (UCC) and 49.1% by Indian investors including the Government of India and government-controlled banks. UCIL produced batteries, carbon products, welding equipment, plastics, industrial chemicals, pesticides and marine products.

In 1970 UCIL built a pesticide plant in Bhopal, India, which gained worldwide attention as a result of the Bhopal disaster. On 3 December 1984, a release of methyl isocyanate (MIC) gas killed more than 3300 people. At the time of the disaster, UCIL was ranked twenty-first in size among companies operating in India. It had revenues of Rs 2 billion (then equivalent to US$170 million).

In November 1994, UCC completed the sale of its interest in UCIL to McLeod Russel of Calcutta. UCIL was subsequently renamed Eveready Industries India.