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Sorry to say but you cannot make changes in the application of joint entrance screening test, As you have done the finals submission. One more information is that if you application is incomplete then your application will be made removed automatically. Mentioned below are the other points which you must look after while filling the application form of joint entrance screening test.
Read More about JEST: https://www.google.com/url?sa=t&source=web&rct=j&url=https://engineering.careers360.com/news/joint-entrance-screening-test-jest/amp&ved=2ahUKEwjFzIDW_vP0AhU4rlYBHd5ABFIQFnoECAQQAQ&usg=AOvVaw3A83RioMnZYsfiTJ8OJAOt
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