This is a formal classified advertisement published in a newspaper announcing a legal change of name.The advertiser, Pronit Roy, is correcting his son's name from "Proneel Roy Chowdhury" to "Proneell Roy Chowdhury" on official records.The change is based on the son's birth certificate, which was registered on December 14, 2010, under Registration Number 2729.This notice likely fulfills a legal requirement to update official documents, such as an Aadhaar Card, to match birth records.