Suzuki Motorcycles has announced an investment of Rs 500 crore to increase production capacity in India. Currently the company produces 2.5 lakh units per annum, and intends to take it to 5.4 lakh units per annum by 2012. The Japanese automaker has so far invested around Rs 450 crore this year and will put another Rs 50 crore in enhancing its capacity. The company, which currently has 260 dealers across the country, sold 1.8 lakh units in 2009-2010.