Activists are calling for police reforms following a shooting in which a police officer killed an Apple executive in the state of Uttar Pradesh on Saturday.

Vivek Tiwari, a sales manager at Apple, was travelling by car with a colleague on Saturday in the northern city of Lucknow when two police constables on a routine patrol tried to stop the vehicle and shot Tiwari dead.

The police officer has claimed innocence although a complaint filed by Tiwari's wife has a detailed account of the "encounter".

This was the latest in a series of extrajudicial killings by police in the state.

"I didn't shoot at him. The bullet was shot by mistake," Prashant Chaudhary, the policeman who shot Tiwari told reporters on Sunday.

However, the state's top police officer, OP Singh, said on Saturday that the officer claimed to have fired in self-defence.

Both constables involved in the incident have now been arrested.

Days after the killing that sparked massive outrage about the state of law and order, the state government has promised cash compensation of 4 million rupees ($54,600) to his family and a job at the municipal corporation for his widow.

"I wanted strict action against the guilty, a job, accommodation, expenses for education of my daughters and my mother-in-law. My demands have been met," Vivek's wife Kalpana Tiwari told reporters on Monday at her residence after she met the state Chief Minister Yogi Adityanath.

"The backbone of the family has been broken. He leaves behind two young daughters and a devastated wife. Vivek is gone and nothing can replace him but we hope those who shot him will be brought to justice," Vishnu Kant Shukla, Tiwari's brother-in-law told Al Jazeera. (Aljazeera)