He was only 11-year-old schoolboy when he joined Mansa after scoring higher than Stephen Hawking, Bill Gates and Albert Einstein in an IQ test.
Ramarni Wilfred, now 14, started showing signs of genius as a toddler, when his favourite book was an encyclopedia.
He could read and write by the time he started reception at school and at the age of 10 when he was still in primary school, he wrote a philosophy paper on fairness that earned him a 2:1 and a mock Oxford graduation.
When his school wanted to move him up a year, his mother Anthea objected, requesting that he be allowed to grow up with other kids his age.
While Prof. Hawking, Microsoft founder Gates and Einstein all have 160 IQs. Ramarni scored 162, putting him in the top 1%.
His mother said: “He’s still just a little boy doing normal childhood stuff. While he reads the New Scientist and the Sky at Night, he still plays with his dog, watches the Disney Channel and reads comics.
“Mensa allows him to talk and be with other people as clever as he is for the things that go over my head. “He doesn’t think it’s a big deal. I love his humility and I love having my own personal walking, talking dictionary/thesaurus/calculator!”
Ramarni’s dream is to become an astrophysicist.
The youngster, from Romford, Essex in UK said: “I can’t begin to compare myself to these great men whose hard work clearly proves that they are true geniuses.
“This is a great opportunity and I think it can open a lot of doors for me. But I also believe that having a high IQ isn’t that important unless you do something really special with it.”
Mensa’s chief executive, John Stevenage, said: “Anyone who registers an IQ score which places them in the top two per cent of the population has done remarkably well. The score Ramarni achieved therefore is very good and shows he has great potential.”