Clueless Markets end flat...SBI slips over 4% on increased NPAs: After opening on a flat to negative note on mixed global cues, markets traded range bound in negative terrain before recovering towards the end to close flat. The highlight of the day was SBI steller q1 show. Beating estimates SBI posts 137% rise in Q1 Net. However Non Performing Assets (NPAs) rose to nearly 5% triggering a sharp fall of its stock prices.