<Tr> <Th_colspan="2"> History </Th> </Tr> <Tr> <Td_colspan="2"> Military history of India </Td> </Tr> <Tr> <Th_colspan="2"> Ranks </Th> </Tr> <Tr> <Td_colspan="2"> Air Force ranks and insignia </Td> </Tr>

What are the ranks in indian air force