In the early twentieth century, around the coronation of Edward VII, a discussion started on the need for a heraldic symbol that was representative of the Indian empire. William Coldstream, a British member of the Indian Civil Service, campaigned the government to change the heraldic symbol from a star, which he considered to be a common choice, to something more appropriate. His proposal was not well received by the government; Lord Curzon rejected it for practical reasons including the multiplication of flags. Around this time, nationalist opinion within the realm was leading to a representation through religious tradition. The symbols that were in vogue included the Ganesha, advocated by Bal Gangadhar Tilak, and Kali, advocated by Aurobindo Ghosh and Bankim Chandra Chattopadhyay. Another symbol was the cow, or "Gau Mata" (cow mother). However, all these symbols were Hindu-centric and did not suggest unity with India's Muslim population.