Mumbai: Key Indian equity market indices opened in Green on Friday taking a conservative approach from the disappointing macro-economic inflation data released on Thursday. The Sensitive Index (Sensex) of the BSE, which had closed at 27,942.11 points on Thursday, opened higher at 27, 966.14. Minutes into trading, it was quoting at 27, 947.92 points, up 5.81 points, or 0.02 per cent. At the National Stock Exchange (NSE), the broader 51-scrip Nify, which had closed at 8,565 points, was opened at 8,565.15 points, up 0.15 points. Minutes after it was quoting at 8,570.70 points, up 5.70 points, or 0.07 per cent. On Thursday, investors were also seen cautious ahead of the upcoming quarterly earnings season. The markets witnessed strong buying activity during the later part of the day led by the optimism from the Bank of England's (BoE) meet for a probable rate cut in Britain.