Lionel Protip Sen
Rank Component Date of rank
Second Lieutenant British Indian Army 27 August 1931 ( seniority from 29 January 1931 )
Lieutenant British Indian Army 29 April 1933
Captain British Indian Army 29 January 1939
Major British Indian Army 25 August 1940 ( acting ) 25 November 1940 ( temporary ) 1 July 1946 ( substantive )
Lieutenant-Colonel British Indian Army 22 November 1944 ( acting )
Major Indian Army 15 August 1947
Lieutenant-Colonel Indian Army 1947 ( temporary )
Brigadier Indian Army 1947 ( acting )
Colonel Indian Army 1947 ( temporary ) 1 January 1950 ( substantive , with seniority from 29 January 1949 )
Colonel Indian Army 26 January 1950 ( recommissioning and change in insignia )
Brigadier Indian Army 29 January 1952 ( substantive )
Major General Indian Army 16 March 1955 ( acting ) 29 January 1956 ( substantive )
Lieutenant-General Indian Army 1 August 1958 ( acting ) 29 January 1959 ( substantive )
Dates of rank
Lieutenant-General Lionel Protip Bogey Sen DSO (20 October 1910 - 17 September 1981) was a decorated Indian Army general. He commanded the Eastern Command during the Sino-Indian War of 1962.