the great indians

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Across
  1. 2. was an indian paleobotanist
  2. 3. the father of surgery
  3. 6. the missile man of india
  4. 7. won the nobel price on physics
Down
  1. 1. co-discover of raman scattering
  2. 4. who invented zero
  3. 5. indian- americian computer scientist