Assam Chief Minister Sarbananda Sonowal Saturday appealed to the Assam-based insurgent group ULFA-I chief Paresh Baruah to release the two employees of Quippo Oil and Gas Infrastructure, who were kidnapped last December. "We appeal to ULFA-I to release the employees of OIL on humanitarian ground. Our doors are always open for talks. Therefore, we appeal to ULFA-I chief Paresh Baruah to shun violence and have dialogue," Mr Sonowal said.