TNA Perumal, the doyen of wildlife photography is no more. He passed away on 8th February, 2017 at Bangalore.
He was awarded some 200 awards/merits and got some 1500 international photography salon acceptances. He was bestowed the life time achievement award in 2012 by Government of India, Photo Division.
Here is the detailed obituary: http://www.indiawilds.com/diary/obituary-tna-perumal/