New Delhi, July 17 -- The defence ministry has suspended business dealings with Swiss plane maker Pilatus Aircraft Limited (PAL) for a year over the violation of a pre-contract integrity pact (PCIP) in a 2,900 crore contract for 75 basic trainer aircraft. Its decision was also influenced by an ongoing investigation against PAL for alleged corruption and irregularities. In an order uploaded on its website on Monday, the ministry said the move is in line with the government's guidelines for penalties for violations of integrity in such deals....