KAK is the military separation code for "Expiration of Term of Service". Note that the military separation codes are subject to change, and that the military no longer releases the meaning of the codes to the general public. This was the meaning prior to the information ban.
There is no universal code.
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Kak si?
Mushtaq Kak was born in 1961.
Beena Kak was born in 1953.
Subhash Kak was born in 1947.
How are you doing - kak dela?
Ram Chandra Kak was born in 1893.
Ram Chandra Kak died in 1983.
Amar Nath Kak was born in 1889.
Amar Nath Kak died in 1963.
Ram Nath Kak died in 1993.