The notification issued by Union Ministry of Environment and Forest (MoEF) dated July 11, 2011 has listed bulls among six species of animals who cannot be used as a performing animals under Prevention of Cruelty to Animals Act, 1960.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/moef-decides-ban-bulls-performing-animals
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/herald-panjim
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/high-court
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ngo
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ministry-environment-and-forests-moef
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/animals-act-1960