"Om Thakur has been arrested from Indore. He is the main mastermind behind the Sulli deal app case," said KPS Malhotra, Deputy Commissioner of Police, Intelligence Fusion and Strategic Operations Unit, Delhi Police Special Cell.
Deputy Commissioner of Police Sanjeev Yadav said that the accused had come to Najafgarh's Malikpur to murder a businessman after the latter did not give them ransom.
A team went to Maheshwari's house on May 31 in Bengaluru to record his statement, an official said, adding that the Twitter MD was asked how the social media site tagged the tweets of BJP spokesperson Sambit Patra as manipulated media.
Delhi Police Special Cell had served notice to two persons associated with the Indian National Congress to join inquiry when the complaint was submitted by the party.
Earlier in the day, Delhi Police sent a notice to Twitter, seeking an explanation from the microblogging site on what grounds it tagged BJP spokesperson Sambit Patra's tweet on the alleged Congress toolkit designed to target the Central government as 'manipulated media'.
The team of investigators from Israel could arrive in New Delhi as early as Saturday to assist Indian agencies in the probe over the blast in which some cars were damaged in the high-security zone of Lutyens' Delhi.