Bihari Sake Dean Mahomed was the first Indian to write book in English

                                                                                                                                                                                                   Biharis are bad at English has been the general perception - rightly or wrongly. However, many might not know that the first book in English ever written by an Indian was actually written by a Bihari.                         Sake Dean Mahomed was born in Patna in 1759. A surgeon, entrepreneur and traveller, his travelogue, 'The Travels of Dean Mahomet' was published in 1794 when he was all of 35 years. Oberlin College-Ohio's professor of history Michael H Fisher has written a book on Dean Mahomed which is titled, 'The First Author in English: Dean Mahomed in India, Ireland and England'.  According to Mahomed's own account, he hailed from an elite Muslim family related to the 'nawabs' of Bengal and Bihar. His book is in a series of letters to a friend, recounting about India to the Europeans among whom he lived.

Fisher says about Mahomed, "He began his autobiographical travel narrative with his wrenching departure in 1769 from his childhood home among the Muslim elite of north India (Patna in Bihar). He concluded it with his voyage of immigration to colonial Ireland in 1784. ...His travels thus represent a fascinating perspective on these peoples, these customs (these here refers to the customs and people he encountered while travelling) and this colonial conquest: the first book ever written and published by an Indian in English."

According to Wikipedia Encyclopaedia, Mahomed's tone in the book is supportive of East India Company's military conquests in India. It also suggests he was one of the most notable early Indian immigrants to the United Kingdom of Great Britain and Ireland. After he moved with his Irish wife to London in 1810,  Dean Mahomet opened the first Indian restaurant in London, 'Hindoostani Coffee House', in George Street. He is also credited with establishing a 'Shampooing Baths' in Great Britain, where he offered therapeutic massage. 

Before opening the restaurant, Mahomed worked in London for one Basil Cochrane, who had installed a 'steam bath' for public use in his house in Portman Square and promoted its medical benefits. Mahomed might have been responsible for introducing the practice of "shampooing" or Indian massage in Great Britain. In 1814, Mahomed and his wife moved back to Brighton and opened the first commercial 'shampooing vapour masseur bath' in England. He described the treatment in a local paper as "The Indian Medicated Vapour Bath (type of Turkish bath), a cure to many diseases and giving full relief when everything fails; particularly rheumatic and paralytic, gout, stiff joints, old sprains, lame less, aches and pains in the joints".

This business was an immediate success and Dean Mahomet came to be known as 'Dr Brighton'. Hospitals referred patients to him and he was appointed shampooing surgeon to both King George IV and William IV, the website says. 

In 1822 he wrote another book on the benefits of Indian 'medical vapour bath', which became a bestseller. He died in December 1850. A tombstone in St Nicholas' churchyard in Brighton marks the last resting place of Britain's first Indian restaurateur. It reads: 'Sake Dean Mahomed of Patna Hindoostan'.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
 source:TNN