Hello Listers   Can anyone offer me advice on the best way to tackle research at the India Office. I know that I need a Reader's Ticket and that I can pre-register in advance.   But how do I find out catalogue reference numbers etc so that I can pre-order viewing?   My scope of interest lies in BMD registers for Madras, Bellary, Kannur. Also East Indies Co Army (Madras Horse Artillery A Battalion) Musters, roll calls etc.   The date range is 1813-1870. I have specific dates for some events.   Thanks, Colin.