Complex sentence: After Graduation, in 1945, he went to United Services Pre-Cadet College Belgaum to Join Army but was court-martialed due to his direct and open letter to a High ranking Army Officer.
Split into simpler sentences: After graduation, in 1945, he went to United Services Pre-Cadet College Belgaum to join the army. He was court-martialed due to his direct and open letter to a high ranking army officer.