His first notable acting role was in a TVS Scooty commercial. Later he did several television commercials for Cadbury Dairy Milk, GRT Jewellers eBay and Sun Feast. Sachdev secured his first television role in the soap opera Karam Apna Apna (2006) and was finalised for the leading roles in Sapna Babul Ka...Bidaai and Mere Ghar Aayi Ek Nanhi Pari. However, Dev in Chotti Bahu (2008) was his first leading role. It earned him an Indian Telly Award for Fresh New Face (2009) and a Zee Rishtey Award for Popular Male Face of the year 2009. In 2013, he played the lead character Shlok Agnihotry in Iss Pyaar Ko Kya Naam Doon?...Ek Baar Phir. In 2015, Sachdev joined the cast of Qubool Hai Season 4 as the lead. Balika Vadhu season 2 (2016) was his third television project with Sphere Origins.