Member of British House of Lords, Lord Nazir Ahmed Sunday said concrete evidence is being collected against former president General (Retd.) Pervez Musharraf to build a case against him in Britain. At a news conference along with the chief of Peoples Muslim League Barrister Sultan Mehmood, said many people have assured of testifying against Pervez Musharraf. Lord Nazir alleged that no one caused as much damage to the Kashmir cause as did Pervez Musharraf. All the formulae he suggested for the resolution of Kashmir issue came from US think tanks, he added.