Einstein's 1915 letter on relativity auctioned for â¹70 lakh
A signed letter written by Albert Einstein to his friend Michele Besso, expressing joy at the success of his theory of relativity, has fetched nearly â¹70 lakh at an auction. "The boldest dreams have now been fulfilled," Einstein wrote in the letter. The letter dated December 10, 1915, was originally estimated to be worth nearly â¹20 lakh.