A graduate of Mysore University, Chacko also received a Diploma in Philosophy from Dharmaram College and completed a degree in Metallurgical Engineering at Macomb Community College. He also obtained a Lead Auditor Certification from Underwriters Laboratories (UL) in Manufacturing Quality Assurance Systems (ISO-9000).
Chacko retired from Chrysler LLC in 2007.
Chacko was always interested in church history, especially where it concerns Malabar Christians.
Chacko migrated to the United States in 1977. He lives with his wife Annamma Kollikulavil, Manipuzha (Erumely). They have two children, Jaimy and Amy, and a daughter-in-law, Linda.