serving as a member of the Abia State House of Assembly as the committee chairman on women affairs, social welfare and health representing Aba North Constituency.
She was educated at St Clements School Mbutu Umuojioma Ogbu, Federal Government College, Odogbolu and the University of Lagos, graduating with a B.Sc.
In 1991 Nwagba started her career in politics as the supervisory Councillors for Health and Social Welfare in the Aba Local government council.
She sponsored a bill on genotype and blood group insertion on identity cards to reduce child mortality rate and other health challenges.
In her usual vibrant and responsive way of representation, Hon Blessing Nwagba had moved a motion on behalf of the South-East /South-South houses of Assembly in respect to the grazing reserve proposal and activities of herdsmen in the two geopolitical zones.
involved in the training of parliamentarians of ten African countries in Côte d'Ivoire, she presented the roadmap on behalf of Nigeria for the elimination of legal and human rights barriers to access of the key population to information and Medicare on HIV/AIDS.
She equally organized and pioneered health intervention program for Abia residents with foreign doctors from Rapha Hans Foundation in the USA where treatments and surgeries were provided free of charge in the area of diabetes, hypertension, and ophthalmology.
On June 23, 2017, she gave free eye care services and issued reading glasses, medication and other items to her constituency during her town hall meeting.