ISLAMABAD , March 6 (INP) Pakistan Muslim League-Nawaz (PML-N) and Pakistan Peoples Party (PPP) have sped up their contacts with small parties and the independent candidates, who have won seats in Senate elections, to get their backing for chairmanship. Political analysts say that the opposition parties are united on one point that they would not allow the PML-N to get its candidate elected as Chairman Senate. INP/AH