Apollo Hospitals - Why should stock split result in price jump?

Announcements

Apollo Hosp - Board to consider Stock Split | 27/05/10 09:50
With reference to the earlier announcement regarding Board Meeting on May 28, 2010, Apollo Hospitals Enterprise Ltd has now informed BSE that in the agenda of the Board Meeting scheduled to be held on May 28, 2010, to consider and approve sub-division (Split) of equity shares of the Company and other matters connected therewith.

Apollo hospitals is up 10% today. The only relevant news I found was the above coroporate announcement on BSE.
The company as such does not undergo any change. Why should the price jump 10%? Or am I missing something?

- update - it turns out I was missing something. I checked the price on finance.google.com. THere is some bug there where it is showing a jump of 10% where as the price has jumped only 3.8%.