In order to fix the issue, you can try to upgrade the software. However, I suggest you another Marathi plugin specially designed for Adobe products. It is called IndicPlus and it is fully compatible with Adobe InDesign CS2, CS3, CS4, CS5, CS5.5 and CS6. Its price is around $20.99 and you can purchase it from the official web page. Since it is a shareware product, you can test it free of charge if you download and install its trial version.