Go for CC in Double Decker. “Do not” I repeat Do not travel in Jan Shatabdi 2S because the new 2S LHB coach are very uncomfortable because it has an entire row of 3 seats facing each other, all the 3 seats in that row do not have arm rest or recliner and the seats are at 90 degree so you will get a serious back ache within 1 hour. All the 2S coach of all the CSMT maintained trains are like that only.
The earlier version of LHB 2S had individual reclining seats with armrest I don’t know why railway made the new version so pathetic.