Green and Blue Areas were under British control when Robert Roberts arrived in India.  All of India was conquered by the time Thomas Blanchett died.  Note Ajmer late  acquisition in 1818.  Ajmer-Merwara is green blob in Rajputana.  Map is pre-partition India.  Much of the green Bengal area became E. Pakistan/Bangladesh and some of Rajputana and most of the Punjab and west of the Punjab became W.Pakistan.