NRHM is the flagship centrally-sponsored health programme of the Union Health Ministry under which funds are allocated state-wise.
"Rs 1,431 crore given to Uttar Pradesh government have remained unspent," he said while replying to questions.
The Minister said under the NRHM, technical and financial support is given to states and union territories to strengthen their health care systems to provide universal access to equitable, affordable and quality health-care services.
Nadda said most of the states and union territories sought increase in allocation of funds under the Mission to improve health care facilities.