<P> It is the 2nd longest metro line on the Delhi Metro network . This line covers Outer Delhi, North Delhi, through Central Delhi and South Delhi and finally Gurgaon . </P> <P> The Yellow line has interchanges with the Red, Blue and Violet lines of the Delhi Metro, as well as with the Old Delhi and New Delhi railway stations of the Indian Railways . The Line also connects with the Airport Express Line at New Delhi station . Chawri Bazar metro station is the deepest station of the Delhi Metro network and is situated about 30 metres (98 ft) below ground level and has 18 escalators . </P> <P> The following dates represent the dates the section opened to the public, not the private inauguration . </P> <Table> <Tr> <Th_colspan="6"> History </Th> </Tr> <Tr> <Th> Extension date </Th> <Th_colspan="2"> Termini </Th> <Th> Length </Th> <Th> Stations </Th> </Tr> <Tr> <Td> 20 December 2004 </Td> <Td> Vishwa Vidyalaya </Td> <Td> Kashmere Gate </Td> <Td> 4 kilometers (2.5 mi) </Td> <Td> </Td> </Tr> <Tr> <Td> 3 July 2005 </Td> <Td> Kashmere Gate </Td> <Td> Central Secretariat </Td> <Td> 7 kilometers (4.3 mi) </Td> <Td> 6 </Td> </Tr> <Tr> <Td> 4 February 2009 </Td> <Td> Vishwa Vidyalaya </Td> <Td> Jahangirpuri </Td> <Td> 6.4 kilometers (4.0 mi) </Td> <Td> 5 </Td> </Tr> <Tr> <Td> 21 June 2010 </Td> <Td> HUDA City Centre </Td> <Td> Qutub Minar </Td> <Td> 14.5 kilometers (9.0 mi) </Td> <Td> 9 </Td> </Tr> <Tr> <Td> 26 August 2010 </Td> <Td_colspan="2"> Chhatarpur </Td> <Td>--</Td> <Td> </Td> </Tr> <Tr> <Td> 3 September 2010 </Td> <Td> Central Secretariat </Td> <Td> Qutub Minar </Td> <Td> 12.53 kilometers (7.79 mi) </Td> <Td> 9 </Td> </Tr> <Tr> <Td> 10 November 2015 </Td> <Td> Jahangirpuri </Td> <Td> Samaypur Badli </Td> <Td> 4.37 kilometers (2.72 mi) </Td> <Td> </Td> </Tr> <Tr> <Th> Total </Th> <Th> Samaypur Badli </Th> <Th> HUDA City Centre </Th> <Th> 48.8 kilometers (30.3 mi) </Th> <Th> 37 </Th> </Tr> </Table>

Huda city centre to rajiv chowk metro station