Hi Hemalatha,
It is not working properly for iOS.
Note: OnDrawMonthCell is available in latest version but not getting called for iOS. Please do the needful changes for iOS.
Please check the following link to get a modified code-
https://drive.google.com/file/d/0Bzn6WXsEhrOmWTVfVkd4NnJyMEk/view?usp=sharing
Thanks.