His entry into electoral politics occurred in September 2023 when he contested in the Puthupally assembly byelection and won with an unprecedented margin of 37,719 votes, setting a new record for the constituency.
Subsequently, he obtained an additional LLM in constitutional law from Christ University, Bengaluru in 2016.
In between, he also worked as an adjunct lecturer at the Amity University, Noida and the Vivekananda Institute of Professional Studies, Delhi from 2017 to 2020.
He later assumed the role of chairman of the National Outreach Cell of the Indian Youth Congress in 2022.
In late 2022, Chandy embarked on a 4,000 kilometer barefoot walk as part of the Bharat Jodo Yatra movement led by INC leader Rahul Gandhi.
[8] His father Oommen Chandy represented the Puthuppally Assembly constituency consecutively for 53 years.
[9] Chandy was selected as the candidate of United Democratic Front (UDF) by the Kerala Pradesh Congress Committee (KPCC), who submitted his nomination for the bypoll.