Bosch Limited has posted Rs1,123 crore (Rs11.23 billion) net profit for calendar year 2011, registering 31-per cent increase year-on-year, the Indian subsidiary of the German automotive component major said. Net sales and income from operations grew 20-per cent YOY to Rs.8,018 crore (Rs.80.18 billion), with exports crossing the Rs.1,000-crore mark and posting 22-per cent YOY growth. The growth rate, however, declined in the second half of 2011 due to sluggish economic conditions arising out of tight liquidity, high interest rates, increase in fuel prices and overall adverse market sentiments.