British India and Independent India

After Indian got divided complete Baluchistan, majority of Punjab, East Bengal and Lower Burma were no more under Indian constituency. Part of Rajputana was also divided. After 1947 divided LOC was formed and India lost major tourist attraction place like K2.
India divide had lead to loss of great agriculture land in Punjab and Baluchistan. Moreover, leading cotton producing place like East Bengal.
Majority of Cultivation land along Indus river are gone to Pakistan. So economies of India suffered a lot just because of this great divide. It can be easily seen looking at these two maps.