•Ramanujam was born on December 27, 1887, in Erode.•He was a very great and famous mathematician.•He made contributions to the analytical theory of numbers.•His father worked in Kumbakonam as a clerk in a cloth merchant's shop. •When he was nearly five years old, Ramanujam entered the primary school.

•The following year, not knowing that the quintic could not be solved by radicals, he tried (and of course failed) to solve the quintic.•Ramanujan, on the strength of his good schoolwork, was given a scholarship to the Government College in Kumbakonam, which he entered in 1904.•Without money he was soon in difficulties and, without telling his parents, he ran away to the town of Vizagapatnam about 650 km north of Madras. •He married on 14 July 1909 when his mother arranged for him to marry a ten year old girl S Janaki Ammal. Ramanujan did not live with his wife, however, until she was twelve years old.

•Ramanujan continued to develop his mathematical ideas and began to pose problems and solve problems in the Journal of the Indian Mathematical Society.•He developed relations between elliptic modular equations in 1910. •In 1912 Ramanujan applied for the post of clerk in the accounts section of the Madras Port Trust.

•Ramanujan was appointed to the post of clerk and began his duties on 1 March 1912. •Ramanujan was quite lucky to have a number of people working round him with training in mathematics.•He died on 26th April 1920 in Kumbakonam.

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