Changes

All officers held dual rank, that is, rank in their regiment and rank in the Army. Their rank in their regiment dictated what they did on a day-to-day basis. The HEIC regiments did not have the purchase system [for rank in the regiment] but based promotions on seniority within the regiment which was one reason why the timing of an officer's rank within the regiment was important. When an officer held a rank in the Army for a period longer than his rank in his regiment this was probably due to him not having actually been posted to his regiment for a period when he was first commissioned. <ref>Rootsweb India List reply Christie, Thomas. [http://archiver.rootsweb.ancestry.com/th/read/india/2009-08/1251599449 Rank 1251640318 "ank in regiment; rank in army."] by Tim 30 August 2009 (retrieved 14 April 2014)</ref> Although there was no official purchase system, there was an informal system within the HEIC Army whereby the lower rank officers provided a monetary incentive for a senior officer to retire so that all junior officers could move up a step, but it was not an actual purchase of rank<ref> ''Rootsweb India Mailing List reply [http://archiver.rootsweb.ancestry'', 30 Aug 2009.com/th/read/INDIA/2009-12/1259763830 East India Company Army Purchase of Commissions] by Tim B 2 Dec 2009 (retrieved Retrieved on 14 April 2014).</ref>