The National Insurance Company, on Monday, signed a memorandum of understanding with the Department of Posts for marketing of insurance policies under the Pradhan Mantri Bima Suraksha Yojna. The scheme will initially be across 800 head post offices all over India, the company said in a press release. According to Rajesh Aggarwal, CMD, National Insurance, around seven crore enrolments have been done by all companies, of which, two crore enrolments are from poorer sections of society. National Insurance has enrolled almost half of total enrolment (around 3.5 crore), it said in a release.