Complex sentence: Baby Kochamma is capable of lying and double-crossing anyone whom she sees as a threat to her social standing, as a consequence of her loss of respectability after becoming a Roman Catholic nun to be close to Father Mulligan, despite her father's disapproval.
Split into simpler sentences: Baby Kochamma is capable of lying and double-crossing anyone whom she sees as a threat to her social standing. This is a consequence of her loss of respectability after becoming a Roman Catholic nun to be close to Father Mulligan, despite her father's disapproval.