How did Great Britain's military control in India change after the Sepoy Rebellion ?

The biggest effect on British control of the colony, one which had major implications for the British military, was that control of India passed from the East India Company, a corporation chartered by the Crown that held state-like authority in India, to the British Crown itself. This resulted in regular British troops (as opposed to troops controlled by the East India Company) being permanently stationed in the colony. "Sepoys" were Indian soldiers that served the British, and the large-scale revolt that rocked the colony began as a mutiny by Indian soldiers. So another major reform was that the number of British troops relative to Indian soldiers was dramatically increased. British forts and arsenals were constructed around India as the military presence there became a permanent garrison. While the Rebellion resulted in some reforms, the main effect was this tightening of British control of its most important colonial possession.