I have just draw support and resistance, by looking the chart. ICICI looks good.
Please do your own analysis, then take your actions according to your risk taking capability.
If we look at this chart, it tries to break the Bollinger band two times within 110 days; even we look at the past, it was unable to break. But now you can see the last three days it closes almost above the upper resistance of BB, i.e. (mean + 2* Standard Deviation). Bollinger Band, In mathematics, we called it Gaussian or normal distribution or bell curve.
If...