In the near term, any corrections towards 19300-19100 levels should be seen as a buying opportunity, as the index has the potential to extend its rally and test levels of 20000-20300 points. In the week ended August 10, benchmark indices lost about 0.4%. This was primarily due to the Reserve Bank of Indias move to impose an incremental Cash Reserve Ratio of 10% on banks in its move to tighten the liquidity in the system.