The BJP and the Congress' politics over Hogenakkal is undermining national integrity EVEN IN normal circumstances, the regional chauvinistic politics of Karnataka can be detestable. With the state assembly elections round the corner, it has only worsened. Tamil Nadu government's Hogenakkal drinking water project has provided the platform to whip up sentiments in both the states. The project, when completed, would provide safe drinking water to people in the arid districts of Dharmapuri and Krishnagiri in Tamil Nadu. Ground water in this region is contaminated