Sensex, Nifty edge up; on track for best weekly gain since September

Indian shares rose slightly on Friday, heading for their biggest weekly gain in more than three months, as additional stimulus from the European Central Bank helped offset disappointment about the Reserve Bank of India's decision to hold rates. Global sentiment was also buoyed after Wall Street hit record highs on Thursday and after the ECB extended it asset-buying programme for a longer period than many analysts had expected, though it trimmed the size of its purchase. "Yesterday, the markets c