Mumbai Police Cyber Cell has detained a 21-year-old engineering student from Bengaluru, in connection with the 'Bulli Bai' application case on Monday.
The targeting and "auctioning" of Muslim women through a dodgy app has led to widespread outrage and calls for action.
Mumbai Police has not revealed the identity of the suspect detained from Bengaluru yet, except for his age. Police have registered a case against unknown culprits under relevant sections of IPC and the IT Act.
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Earlier in the day, Mumbai Police had also filed an FIR against unknown persons based on complaints that doctored photographs of women were uploaded for auction on 'Bulli Bai' application hosted by GitHub platform.
On Sunday, a case was registered against the 'Bulli Bai' app developers and Twitter handles that promoted the app.
The Delhi Police have sought details from the GitHub platform about the developer of the 'Bulli Bai' mobile application and asked Twitter to block and remove related "offensive contents" on its platform.
IT minister Ashwini Vaishnaw had said on Sunday that the government is working with police in Delhi and Mumbai, where cases have been registered in the matter.