A Bangladeshi national, who entered India three years ago after the murder of his relative, was arrested in Tamil Nadu’s Thiruppur during a crackdown on illegal immigrants, police said on Thursday.

The 29-year-old accused, Tanveer Ahmed, was taken into custody while police were investigating Bangladeshi citizens illegally residing in the Vangamedu area, acting on a tip-off from six people arrested earlier.

During questioning, he was unable to provide clear answers, leading to suspicion, officials said.

He was then taken to the police station for further interrogation, where officers discovered that Tanveer was holding an Aadhaar card with a local address.

Tanveer further revealed that he is a Bangladeshi citizen and had entered India with his wife Sohasim after being involved in the murder of his uncle in Bangladesh three years ago. The couple had been staying in the neighbouring Erode district.

Seven months ago, Tanveer moved to Vangamedu with the help of his friend Mammul.

Based on Tanveer’s confession, police arrested his wife, his friend, and a local resident named Marimuthu, who had helped the three obtain Aadhaar cards with an Indian address for Rs 6,000.

Further investigation is underway, officials added.