Complex sentence: Kishen is brought up by Kamini and Ghendamal with lot of abuse, and intimidation, and is kept illiterate, so that he can blindly sign away whatever documents he is asked to sign.
Split into simpler sentences: Kishen is brought up by Kamini and Ghendamal with lot of abuse and intimidation. He is kept illiterate, so that he can blindly sign whatever documents he is asked to sign.