<Tr> <Td> (52nd) </Td> <Th> Sanath (Fire Fly Digital) </Th> <Td> Anji </Td> <Td> Telugu </Td> <Td> For imaginative and effective creation of an outside world using special effects . </Td> <Td> </Td> </Tr> <Tr> <Td> 2005 (53rd) </Td> <Th> Tata Elxsi </Th> <Td> Anniyan </Td> <Td> Tamil </Td> <Td> For highly imaginative and creative special effects that lift the style of the film . </Td> <Td> </Td> </Tr> <Tr> <Td> 2006 (54th) </Td> <Th> EFX, Chennai </Th> <Td> Krrish </Td> <Td> Hindi </Td> <Td> For impressive effects and technical finesse that enhances the magical quality of the film . </Td> <Td> </Td> </Tr> <Tr> <Td> 2007 (55th) </Td> <Th> Indian Artists </Th> <Td> Sivaji </Td> <Td> Tamil </Td> <Td> For the pioneering effort of rendering tones and textures that assume realistic proportions . Turing dark skin tone to fair by painstaking computer graphic work is most convincingly done . </Td> <Td> </Td> </Tr>

Which film won both national and filmfare awards for best special effect in 2011