Biswaroop Roy Chowdhury is the holder of 2 Guinness World Records (memory and push-ups), author of 25 books on mind and memory, holds World Wide Patent for his inventions - Memory Lab, Mnemonic Pen, Happiness Machine & Animated Cosmic Energy Card (ACEC) and his name is mentioned in Oxford University's official website for his contribution in the field of memory training. He is the chief editor of India Book Of Records.
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Biswaroop Roy Chowdhury is the holder of 2 Guinness World Records (memory and push-ups), author of 25 books on mind and memory, holds World Wide Patent for his inventions - Memory Lab, Mnemonic Pen, Happiness Machine & Animated Cosmic Energy Card (ACEC) and his name is mentioned in Oxford University's official website for his contribution in the field of memory training. He is the chief editor of India Book Of Records.
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Add this copy of Safalta Ki Vaigyanik Taknik (ସଫଳ& to cart. $11.61, new condition, Sold by Ria Christie Books rated 5.0 out of 5 stars, ships from Uxbridge, MIDDLESEX, UNITED KINGDOM, published 2022 by Diamond Books.
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