Complex sentence: He helps Ajay in knowing who are the people, who are corrupting the society, but is brutally murdered by them, his sister Kavita played by Mamta Kulkarni, then publicly disrobed in the college library by drug peddler Jaggi.
Split into simpler sentences: He helps Ajay in knowing who are the people, who are corrupting the society, but is brutally murdered by them. His sister Kavita played by Mamta Kulkarni, thereafter is publicly disrobed in the college library by drug peddler Jaggi.