The Chaliha Sahib Festival is indeed a prominent festival celebrated by the Sindhi community, principally in the Sindh region. Thus, pair 1 is correctly matched.
Nanda Raj Jaat Yatra, meanwhile, is incorrectly matched with the Gonds. This Yatra is a religious and cultural festival of the people in the Uttarakhand state of India, primarily associated with the Garhwal community, not the Gonds.
The Wari-Warkari tradition is associated with the Maratha community in Maharashtra, and not the Santhals as indicated in the question. Hence, pair 3 is not correctly matched.
Therefore, among the given options, only pair 1 (Chaliha Sahib Festival — Sindhis) is correctly matched, making `1 only` the correct option for this question.