In the political heartland of the Nehru-Gandhi family, the shock defeat for the Congress has lifted the lid on simmering tensions. What once seemed like an impregnable fortress now appears to be a hotbed of factionalism with rival Congress dynasties and their supporters accusing each other of sabotage with fingers even being pointed at 10 Janpath. This week, has the Congress' rout in its bastion of Amethi, Sultanpur and Rae Bareli exposed the cracks in Rahul Gandhi's Mission Uttar Pradesh?