The Enforcement Directorate intensified its probe in Punjab National Bank scam. On Friday morning, the ED officials raided Gitanjali Gems showroom in Hyderabad and seized diamonds worth Rs 3,000 crore. The ED sleuths also conducted searches at the house and office of the Gitanjali Gems founder Mehul. Mehul is running a chain of showrooms in Hyderabad, Mumbai and Surat. The ED officials raided gems company set up by Nirav Modi at SEZ in Ravirala. The ED recovered key documents useful for probe.