<Tr> <Th> Service type </Th> <Td> Superfast, Rajya Rani Express </Td> </Tr> <Tr> <Th> First service </Th> <Td> 11 March 2012 (1) (2) (3) </Td> </Tr> <Tr> <Th> Current operator (s) </Th> <Td> North Central Railways </Td> </Tr> <Tr> <Th_colspan="2"> Route </Th> </Tr>

What is 2s class in rajya rani express