I am surprised you want to discuss the author's nationality to assess the quality of his research. It is non-relevant. Have you read William Dalrymple's 'The Last Mughal' or 'The Untold Story of India's Partition - Shadows of the Great Game' by Narendra Singh Sarila? These are both very well researched accounts of the periods they discuss. Is it important for gaining knowledge to know who researched the subject? Whether to our liking or not, the opinions (and various research) need to be studied carefully before downplaying their importance.
