The authority behind Portfolio Management Services is Aditya Birla Sun Life AMC Limited. Aditya Birla Sun Life AMC Limited has a section called Portfolio Management Service. Aditya Birla Sun Life AMC Limited (ABSLAMC) is a joint venture between the Aditya Birla Group, a well-known Indian conglomerate, and Sun Life Financial Inc., a significant worldwide financial services firm based in Canada that was established in 1994.