Complex sentence: Muthuramalingam's condition is ill. It is revealed that Madhu has died a few years back due to some medical ailments, but she has written all the truth in a diary and gives it to Sidharth to read it after her death.
Split into simpler sentences: Muthuramalingam's condition is ill. It is revealed that Madhu has died a few years back due to some medical ailments. But Madhu has written all the truth in a diary and gives it to Sidharth to read it after her death.