QUETTA: Former Pakistan People’s Party (PPP) Balochistan chapter president Lashkari Raisani on Tuesday resigned from the Senate, sources have confirmed.According to reports, Raisani faxed his resignation to the Senate chairman. Sources maintained that the reason for his resignation is disillusionment with the present PPP leadership.Sources close to him claimed he could announce joining Pakistan Tehreek-e-Insaf during Imran Khan’s upcoming visit to Balochistan and his address to a public meeting in Quetta on April 20.