The government on Thursday emphasised the urgency to pass the Goods and Services Tax (GST) laws during the current session of Parliament, saying the Centre and the states would otherwise lose their right to collect indirect taxes after September 15.Finance Minister Arun Jaitley said in the Rajya Sabha that the government is keen to roll out the GST on July 1 and other aspects like bringing petroleum and land under its ambit will be considered after the first year of implementation of the new system of indirect tax collection.Replying to a debate on the Bugdet which was approved by the House later, he said four bills supporting the Constitution amendment law on GST enacted last year will be introduced in the Lok Sabha shortly. 24TH MARCH,2017,BUSINESS STANDARD,NEW-DELHI