In his career, he defused more than 256 bombs, thus saving thousands of lives in Naxal affected areas, which are heavily mined by Naxalites. He used to walk over 50 km without water or food in the difficult terrain of central India, never in his career got ill, his friends[who?]used to call him "Steel Man" (સ્ટીલ મેન).
When asked about weakness of Narendra Chaudhary, the Jawans said "He had only one weakness- a cup of tea". Narendra Singh was so fearless that when it come to diffuse bombs he keep whole team away from bomb and himself took risks. Because of his such abilities he was always in Hit list of Naxalites.