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OLDHAM Miners' Cap Lamps were first introduced in India in 1955, and presently over 4,00,000 nos. are in use. Batteries for these Cap Lamps are manufactured at Exide Industries' Guindy (Chennai) and Shamnagar (West Bengal, Near Kolkata) works. These batteries are sold through dedicated branch offices situated in all major coalfields of the country.
The cap lamp products offered by Exide are -