Complex sentence: Rancho then convinces him to go confront his father and his father reluctantly agrees to it all this while Virus gets frustrated at Rancho's influence on Raju and Farhan, and he conspires to deliberately modify the final exams so difficult so that none of them can graduate.
Split into simpler sentences: Rancho then convinces him to go confront his father and his father reluctantly agrees to it. All this while Virus gets frustrated at Rancho's influence on Raju and Farhan, and he conspires to deliberately modify the final exams and make it so difficult so that none of them can graduate.