Sir Roger Dowler of Bengal was a terrible, terrible guy who used to spend all his time boozing and doing wicked, wicked things with women, all the while his countrymen were impoverished by rapacious men of avarice who loafed around in the capital. What? Never heard of Sir Roger? Sure you have, except you know him by his real name — Siraj-ud-Daulah, the last independent nawab of Bengal.
John Company’s men anglicised Siraj’s name. They also wrote about him being a very bad ruler, from whose misgovernance the people of Bengal had to be delivered by Clive and his men. And that historiography essentially continued with the orientalists of the 19th century all the way to 20th century Indian historians like Jadunath Sarkar and Ramesh Chandra Majumdar.
Of course, that history is not what any school child in either Bengal learns. What we learn is this: