ISLAMABAD - The resignation of Pakistan Muslim League (Nawaz) from Parliament could result in conduct leads to by-elections, as the existing electoral laws do not allow general elections to be carried out before a certain time period. In the light of present electoral laws, the Election Commission of Pakistan is obligated to conduct general parliamentary elections upon the dissolution of a parliamentary assembly with 120 or less days remaining in the expiry of its tenure. In case a parliamentary assembly or assemblies get dissolved before these 120 days or four months, the electoral laws provide for the conduct of by-polls. Senior PML-N leader Khawaja Asif told TheNation on Wednesday that he stood by his statement made a day earlier that PML-N was considering to quit the assemblies within two months. "Two months is a tentative timeframe and party leadership has not taken any decision as yet but we are considering quitting the Parliament," he said. The move, if materialised, would result in the postponement of Senate polls scheduled for March next year due to the breakage of Senate's electoral college. It asks for a mention here that Members Provincial Assemblies (MPAs) elect the Senators in respective provinces through proportionate representation while Members National Assembly (MNAs) elected from Islamabad elect the Senators at Centre from the federal capital quota. The PML-N's announced 'departure' from the Parliament would bring in bulk the resignations of some 200 MPs in Punjab Assembly and those of 92 in NA. Considering these mass resignations, the conduct of by-polls on such a large-scale in the light of existing rules comes as a gigantic challenge. According to the ECP officials, the Commission has certain discretionary powers to deal with an anomaly that may arise out of the conduct of large-scale by-polls and the postponement of the Senate polls.