Dr. Ratna De (née Nag) was a member of the 15th Lok Sabha and continues to be a member of the 16th Lok Sabha. She was elected as a Trinamool Congress candidate from Hooghly (Lok Sabha constituency), which includes the Singur area.
She is daughter of Dr. Gopal Das Nag, who was Labour Minister in the Congress government under Siddhartha Shankar Ray. In 2001 and 2006, she had won the assembly election from Sreerampur(Serampore).
A doctor (MBBS and DCH) by profession, she is Member, Committee on Petroleum and Natural Gas, Lok Sabha.