Kolkata: Noted social worker Meher Engineer died in the city on Wednesday. Engineer, who was a scientist, passed away at the age of 75.He was associated with the Singur Nandigram movement and visited places to organise the people to protest against the red terror unleashed by the CPIM. He was an active member of the forum of the intellectuals and cultural activists that came up after the Singur and Nandigram incidents. He was a presidium member. He was associated with many NGOs associated with slum development and empowerment of women.