A string of poor performance in the ongoing Test series had prompted Richards to describe Ramdin as a "lost guy".
Just after completing the second Test century of his career, Ramdin surprised one and all by taking a note out of his pocket and holding it aloft as he pumped his clenched fists.
His unusual celebration was promptly caught by the television cameras.
Ramdin has had a poor start to the series against England with the scores of 6, 43, 1 and 6 in the four innings so far.
"Ramdin just looks out of sorts. When he first came into the game, I felt he was a huge prospect. For some reason, he has deteriorated in such a big way. Just the way he is walking back, he looks like a totally lost guy," Richards, the former West Indies skipper, had said recently.
Ramdin has been recalled into the side after a gap of two years. His first Test century had come way back in February 2009 when he made 166 against England.
Courtesy Ramdin's superb knock and his last-wicket stand with Tino Best helped West Indies get past the 400-run mark in the first innings of the ongoing third Test.
England have already sealed the series by winning the Test matches at Lords's and Trent Bridge.