ICICI Bank today said it will decide whether to increase home loan rates or not after watching the impact on cost of funds."We are watching the impact on cost of funds, and would decide subsequently whether or not to increase interest rates on home loans," a bank official said today.HDFC has, with effect from today, hiked home loan rates by 0.5%.State Bank of India chairman A K Purwar had earlier hinted at a hike in retail lending rates in view of the tight liquidity in the market.