After a CBI officer testified in a court that Amit Shah was among the "principal conspirators" in the 2006 Tulsiram Prajapati fake encounter case, Congress President Rahul Gandhi on Thursday took a swipe at the BJP saying it was "appropriate" for the BJP to have such a man as its President."The Gita says you can never escape the truth and so it has always been. Sandeep Tamgadge has called Amit Shah a "key conspirator" in his testimony. It's completely appropriate for the BJP to have such a man as its President," tweeted Gandhi.The Congress leader's remarks came a day after Tamgadge, the chief investigating officer in the Prajapati case, told a CBI court that Shah and former IPS officer D.G. Vanzara were the "principal conspirators".Tamgadge in his deposition, also said that Shah was part of "criminal-politician-police nexus" and Prajapati, Sohrabuddin Shaikh and Sohrabuddin's wife Kausar Bi were killed as a result of this nexus.A Nagaland cadre IPS officer, Tamgadge investigated both the cases involving the killings of Sohrabuddin and Prajapati allegedly in staged encounters.The CBI had earlier indicted and arrested Shah of being a "part of the larger conspiracy to kill Sohrabuddin, subsequently his wife and finally Prajapati. But he was later discharged of the charges by a CBI court in December 2014 months after the Narendra Modi-led BJP came to power at the Centre.