Bombay Sappers and Miners

Chronology

1777 raised by Major Lawrence Nilson as Pioneer Lascars
1781 became Bombay Pioneers
1820 company of Sappers and Miners raised
1826 2nd company of Sappers and Miners raised
1829 Sappers and Miners renamed the Engineer Corps
1830 Bombay Pioneers absorbed by the Engineer Corps
1833 remaining part of Bengal Pioneers merged with Bengal Sappers and Miners
1840 renamed as the Bombay Sappers & Miners
1903 brought into the Indian Army and became 3rd Bombay Sappers & Miners
1921 became the 3rd Royal Bombay Sappers and Miners
1923 became the Royal Bombay Sappers and Miners
1923 became King George V's Own Bengal Sappers and Miners
1947 allocated to India on Partition

Indian Sappers 1740-1947 Royal Engineers Museum. Details of the Bombay Engineers are included.
Bombay Engineer Group Wikipedia
Bombay Sappers indiapicks.com

Addiscombe, its heroes and men of note by Colonel H. M. Vibart 1894 Archive.org. Addiscombe was the East India Company Military Academy in England for the training of cadets for the Engineers, Artillery and Infantry.