There is no more pure joy than RailFanning.

Now-a-days many people ask for Shatabdi/Rajdhani.. I am compiling here a list of Rajdhanis which can be sustainable connect different places and do no violate the Rajdhani concept as well
Rajdhanis
1) NDLS-UMB-CDG-ANSB-NLDM-UHL-PTKC-JAT (after completion of NLDM-MEX rail link, can be extended to Srinagar once Katra Banihal link is complete) (will connect 2 state capitals with NDLS) - Daily
2) NDLS-AGC-JHS-BPL-MMR-CSTM (will connect...
more...

2 state capitals with NDLS) - Biweekly
3) NDLS-LKO-GKP-PPTA (will connect 2 state capitals with NDLS) - Daily
4) NDLS-KOTA-BRC-KYN-PUNE-MRJ-LD-MAO (will connect 2 state capitals, KYN for Mumbai and MAO for Goa with NDLS) - Triweekly
5) NDLS-JP-ADI-BDTS (will connect 3 state capitals with NDLS) -Biweekly
6) NDLS-LKO-PNBE-GHY-AGTL (will connect 4 state capitals with NDLS) - Biweekly
Shatabdis
1) NDLS-JAT
2) NDLS-JP
3) NDLS-ALD
4) AGC-LKO
5) PNBE-LKO
6) SBC-SC
7) PUNE-MAO
8) PUNE-ADI
9) NDLS-PTA
Add if you feel more should be added