This page lists all websites built using Drupal and has Hindi interface.
http://hindi.indiawaterportal.org/ - इंडिया वाटर पोर्टल (हिन्दी) | सबको, हमेशा, साफ पानी
http://www.hindyugm.org - हिन्द-युग्म
Partial Hindi Trranlated Websites:
http://hindi.ebharatnews.com/