My Rank Booster

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This is an application with following features :
1) institutes or schools can conduct test by giving question either as pdf/jpg etc format or in hard copy and student can fill their answers in online answer sheet with in app.
2) result can be seen live with dynamic rank and marks.
3) Answer sheet will be displayed immediate after test.
4) student can challenge question in case of doubt.
5) record of all test is maintained online.