With self help groups (SHGs) present in large numbers, Prime Minister's economic advisory council chairman C Rangarajan on Tuesday wanted the government to clearly define the legal status of such groups. "We need to clear the legal status of SHGs at the moment. I understand they are not registered in any form of organisation, Mr Rangarajan said while delivering the keynote address at the first day of conference of microfinance India. He also said the issue of how to combine different SHGs into a larger organisation to command greater creditability and credit also needed to be addressed.