What happend to this stock?

in the month of 3rd December 14 the ICICIbank trade at the rate of 1778 , very next day the stock come to 360, why this happened ?

the stock has been splited thats why it is down to that price, it is good for retail investors that big stocks will be splited

4th Dec 2014, ICICI went ex-stock split, ratio was 1:5. So instead of 1 share of 1778, you now had 5 shares of 360. Check this on how corporate action affects stock price.