The accused had illegally crossed the Indian border and entered West Bengal 5–6 months ago, working under fake names at different restaurants in Mumbai and Thane.

This article contains gruesome details of violence that could be triggering for some readers. On January 16, Saif Ali Khan suffered multiple stab wounds during an attempted robbery at his Bandra residence.

Further investigation has led to the finding that the Bangladeshi national Mohammed Shariful Islam, arrested for the attack on actor Saif Ali Khan, first entered India seven months ago by crossing the Dawki river.

A man thought to be a citizen of Bangladesh was arrested in India's financial capital Mumbai on Sunday and is considered the prime suspect in the stabbing of Bollywood star Saif Ali Khan, police said.

Bangladeshi national Shariful Islam, who stabbed actor Saif Ali Khan, was planning to flee back to his home country after seeing his photo on news channels. He was arrested in Thane following an extensive investigation that included analysis of CCTV footage and tracking a digital payment he made.

The Mumbai Police on Sunday morning confirmed that the person arrested for allegedly attacking actor Saif Ali Khan is an illegal immigrant from Bangladesh

The attacker, identified as Shariful Islam Shehzad Mohammad Rohilla Amin Fakir, who had changed his name to Vijay Das, allegedly carried out the violent attack on Khan inside his Bandra apartment on Thursday.

The shocking nature of the attack raised serious concerns regarding security at the 'Satguru Sharan' building where Khan lives.

Mumbai police probing the case have alleged that the accused is a Bangladeshi national who was staying illegally in India after changing his name to Vijay Das.