The broad pennant of the Commander in Chief of the Indian Navy. The naval force of the Honourable East India Company was known as the Bombay Marine until 1830 and the Indian Navy from 1830 to 1863. The flag was established on 14 June 1848.

A red swallow tailed pennant flag made of wool bunting pennant with a silk lion and appliquéd embroidered details. The hoist is linen and contains a rope halyard with a wooden toggle. The flag has a white cross and a rampant lion holding a crown in the canton. The cross and lion were originally yellow. The swallow tails are now of unequal length as the lower one has been extended.

The broad pennant belonged to Captain Sir Robert Oliver (1783 - 1848), a naval officer who became Superintendant of the Indian Navy in 1837 - a post he would hold until his death on 5 August 1848.