Which of the following is NOT correct about Survey General of India?
i.              It is one of the oldest scientific establishments in India, has completed 250 years             
ii.             It demarcates state and international boundaries, maps the topography,rivers, flood plains, and roads
iii.            Current Surveyor General is Dr. SwarnaSubba Rao

If the Battle of Plassey in 1757 laid the foundation of British rule in India, the Survey General of India, established ten years later by the British East India Company, helped it expand its footprint across the subcontinent. As the institute, one of the oldest scientific establishments in India, completes 250 years tomorrow, it continues to touch the life of the common man even today.The SGIs mandate ranges from demarcation of state and international boundaries, mapping of topography, making maps for urban planning and defence installations to reading deformities of dams and mapping rivers, flood plains, and roads.