Branding expert Anand Halve, who is credited with the “Sunday ho ya Monday, roz khao ande” campaign by the National Egg Coordination Committee, died in Mumbai on Wednesday. Halve had been diagnosed with a progressive lung disease. He was 61.

Halve started his career in advertising in the late 1970s when he joined Lintas as a trainee. After Lintas, Halve, who was popularly known as Andy, moved to Fulcrum. Between 1989 and 1999, he was at Enterprise Nexus, which was considered to be one of the most creative ad agencies of its time. He then went on to set up his own brand consulting firm, Chlorophyll, along with Kiran Khalap and Madan Bahal in 1999. Halve worked for brands such as Britannia, Dabur, Hero Motors, Lakme and Titan.

Apart from advertising, Halve also wrote Urdu poetry. “He loved his Old Monk [rum] and shayri,” Ashok Lalla, an independent digital and marketing adviser, told Mint. Halve wrote several books including Planning for Power Advertising, AdKatha: The Story of Indian Advertising and Darwin’s Brands: Adapting for success.

Halve’s colleague and Chlorophyll co-founder Khalap shared the news of Halve’s demise on Twitter. “The Chlorophyll community grieves the untimely death of its co-founder, father of brand planning in India and friend to millions: Anand Halve.” The advertising industry and many others offered their condolences to his family on social media. “It’s hard to speak of Andy as a colleague, because it was impossible to know him and not love him as a friend and father figure,” Priyanka Kheruka of Borosil told Mint.