New Delhi, Feb 21 (ANI): Political leaders on Saturday reacted over ‘document leak’ from the Petroleum Ministry after which seven people have been arrested and investigation is going on. Union Home Minister Rajnath Singh said that complete investigation shall be done and culprits won’t be spared. BJP leader Sambit Patra said that cheating was going on since long in the ministry but the previous government did not pay heed to it. Congress leader Manish Tewari said that this ‘corporate espionage’ should have been uncovered earlier. CPI leader Atul Anjan said that it is good that such scams are being highlighted and culprits arrested.