Which of the following pair of dance – state is correct? I. Chhau – West…

A dance–state pairing is correct only when it matches that dance tradition's actual documented home region, built up through its centuries-old lineage of practice and patronage — not merely its shared classification as "classical" or "semi-classical".

• Chhau is a semi-classical dance tradition of eastern India's tribal-agrarian belt; its major living style, Purulia Chhau, is a masked, martial performance form rooted in West Bengal (sister styles are the also-masked Seraikella Chhau in Jharkhand and the unmasked Mayurbhanj Chhau in Odisha) — Statement I's pairing holds.

• Sattriya is a classical dance form that grew out of the Vaishnavite monasteries (sattras) of Assam, codified by the saint-reformer Srimanta Sankardeva in the 15th–16th century — it has no established home in Rajasthan, so Statement II's pairing fails.

Cross-check: Rajasthan's own recognised dance traditions are folk forms such as Ghoomar and Kalbelia, not Sattriya — reinforcing that the Statement II pairing is a mismatch. With only Statement I verified as correct, the pairing that holds is Chhau–West Bengal alone.