also known as champak chacha. the role is essayed by amit bhatt. he is the father of jethalal who immigrated from ancestral village of gada family, bhachau, to live with the family of jethalal in mumbai. he is a widower and is eccentric and temperamental in nature. despite being nearly 72 years old, he is more energetic than jethalal. he performs pranayam and yoga and is an active member of young old group, a small group founded by him and his friends. champaklal loves his whole family and enjoys special bonding with his grandson tapu. he always takes the side of tapu and daya whenever jethalal scolds them. due to his supreme decision-making authority, jethalal is often sidelined in family matters. he loves jethalal with his whole heart but shows it on very rare occasions. he always scolds jethalal and angrily calls him "babuchak" and “akkal vagar jo dhandho”. he calls jethalal as "jethiya", tapu as "tapuda", and daya as “bahu”. he also has nicknames for the whole purush mandal as he calls, taarak mehta as "mehtoos", popatlal as "dibba", bhide as "bhindi master", dr. haathi as “haathida” and iyer as “iyerdi”. however, champaklal is a fatherly figure for gokuldham residents. he is always given immense respect and is involved in the decision-making process. everyone calls him chachaji and whole tapusena calls him dadaji. champaklal always acts as a peacemaker in issues and verbal spats. he is also very fond of daya's cooking skills and has mehta be his troubleshooter when jetha is not available.