MUMBAI, March 22 -- Opposition coalition Maharashtra Vikas Aghadi (MVA) is staring at a setback. Five days after the Lok Sabha elections were announced, the three parties are yet to resolve their differences over the sharing of 48 Lok Sabha seats in the state. The bone of contention is four seats-Mumbai North West, Mumbai North East, Mumbai South Central and Sangli, which has led to friction between the Congress and Shiv Sena (UBT)....