New Delhi, Sept 24: Former Uttar Pradesh minister Amarmani Tripathi, remanded to seven days police custody in Lucknow yesterday in the Madhumita Shukla murder case, is likely to be brought to Delhi for interrogation. Tripathi is also likely to be subject to a lie detector, CBI sources here said. The former minister, who was arrested on Sunday, was remanded to seven days police custody by a special judicial magistrate (CBI) R M Yadav yesterday. He has been accused in the murder of the young poetess in her house in Lucknow on May 9 this year. Bureau Report