Skin-lightening is very prevalent and periodically the company DOES quietly allow them to update their 'organizational chart photos' just so the contrast doesn't become so embarrassingly obvious.
(a new guard once refused admittance to an upper executive because her chart picture versus her appearance resembled a 70's michael jackson against his present 'look'. It was all over the facility at lightspeed and a big long letter followed about how good employees ought to be diverse and ignore skin color and be quiet and not snigger and chuckle when embarrassing incidents occur and 'we're watching you' and so forth)
**I work with several India-born immigrants (all naturalized US citizens now), all 'degreed professionals', and there definitely is a distinction between the way they treat their 'lighter skintone' colleagues (ethnicity doesn't seem to be a factor) of almost any level within the organization and those of darker tones (darker than 'classic caucasian'; still lighter or darker than themselves). Dare One say "class distinction'?, etc.**
That's a shame, but it is true. IIRC, the Vedas are full of references to the conquest and subjugation of the "dark, noseless" aborigines of the Indian subcontinent. A lot of the hard-line Hindu leaders in the 1930s and 1940s sided with the German Nazis against the British, and it wasn't just out of opposition to British rule in India, but because of some supposedly shared Aryan connexion. Also IIRC, the term "varna" used to indicate caste is a term which originally meant "colour" or somesuch.