Mumbai: As the government remains firm on April 1 deadline for rolling out of Goods and Services Tax (GST), the key Indian equity market indices opened in Green on Friday. The Sensitive Index (Sensex) of the BSE, which had closed at 27,714.37 points on Thursday, opened higher at 27,810 on Friday. As many as 55 minutes into trading, it was quoting at 27,905.49 points, up 191.12 points, or 0.69 per cent. At the National Stock Exchange (NSE), the broader 51-scrip Nify, which had closed at 8,551.10 points, was opened at 8,617 points. Minutes after it was trading at 8,613.85 points, up 62.75 points, or 0.73 per cent. On Thursday, the Sensex was up 16.86 points at the closing but it touched a high of 27,921.91 points and a low of 27,627.97 points during the intra-day trade. The Nifty too gained 6.25 points. Profit booking, along with negative Asian indices and a weak rupee, subdued the Indian equity markets on Thursday. Among Asian markets, most of the indices except Shanghai Composite are trading in green on Friday after Bank of England (BoE) launched a potent post-Brexit stimulus campaign. Overnight, Wall Street stocks closed with a little change on Thursday as investors were looking at Friday's US payrolls report for July.