MUMBAI, Jan. 11 -- Tata Consultancy Services Ltd (TCS) missed analysts' estimates on earnings although the country's largest information technology (IT) services provider posted a fourth straight quarter of year-on-year (y-o-y) double-digit revenue growth in constant currency terms.

The Mumbai-based company's December quarter revenue rose 1.8% in constant currency terms from the preceding three months. Currency fluctuations took some sheen off the growth as dollar revenue grew at a slower pace of 0.67% to $5.25 billion in the quarter ended December 31 from the preceding three months. "Because of TCS's size, one should not try to evaluate its performance on q-o-q (quarteron-quarter) as there will be some volatility. The heartening thing is ...