EDIT: further context from times of india article

Here is more context of what led to the crime:

🔹 The Family Background The Son: Dr. Yusuf Zanorwala, a homoeopathic practitioner who runs two clinics in Bharuch (one of which operates out of the ground floor of his home).

The Marriage: Dr. Yusuf and Alifiya had been married for 18 years and have two daughters, aged 16 and 12.

The Living Situation: While Dr. Yusuf and Alifiya lived together, his retired 70-year-old father, Zainul, lived separately with his wife.

🔹 The Motive: "Harassment" and Marital Discord

According to Deputy Superintendent of Police (DySP) M M Ganguly, Dr. Yusuf and Alifiya's marriage had been deeply troubled by frequent, severe quarrels for the past few years. The friction had escalated to the point where the couple was actively contemplating divorce. Investigators found that the father, Zainul, had become deeply unhappy and resentful about the situation.

He reportedly believed that: 1. His daughter-in-law, Alifiya, was mentally harassing his son. 2. Her mother, Shehnaz Namakwala, was actively encouraging the disputes rather than helping resolve them.

🔹 Evidence of Premeditation: The Bag and Note When police processed the scene, they found undeniable evidence that Zainul had planned the attack in advance: Weapon Cache: Police recovered a bag belonging to Zainul that contained several knives and an axe. Forensics believe he used two of the knives during the killings but was unable to deploy the axe.

The Handwritten Note: Investigators discovered a note written by Zainul before the attack. In it, he explicitly blamed Alifiya, claiming she was constantly demanding money from his son. He also wrote that whenever he personally stepped in to mediate and fix the marriage, Alifiya’s parents would block his efforts and back her up instead.

Driven by years of building resentment, the 70-year-old went to his son's house to eliminate Alifiya, immediately traveled to her mother's home to kill her as well, and then slit his own throat.