Answer : 3. "भारतीय लोक कला मंडल, उदयपुर "
Explanation :

1. Bharatiya Lok Kala Mandal is known for its important role in the preservation and promotion of puppetry art in Rajasthan. This institution was established in 1952 in Udaipur. Its objective is to promote knowledge and research in the field of folk arts, performing arts and puppetry.

2. Bharatiya Lok Kala Mandal organizes many programs to preserve various forms of puppetry art. These include training of puppeteers, performing puppet plays and researching the art of puppetry.