#BookingTip.
If wish to travel from Tatanagar to Delhi , and getting heavy waiting list or regret in this train for SL class, then Book Kharagpur to New delhi and change boarding point to Tatanagar.
Tata is in RLWL quota whereas KGP is in GNWL quota, thus having more chance of confirmation or atleast getting RAC if take GNWL below 60-70 in Sleeper class.
Just...
more...

Rs 40 excess fare is spent but confirm ticket can be get.

#BookingTip
Those who wish to travel from Jabalpur to Yesvantpur , and are not getting confirm seats ,
Book for Satna to Yesvantpur , change Boarding point as Jabalpur and enjoy the General quota seats.
Jabalpur is in RLWL whereas Satna is in GNWL.
Just...
more...

Rs 40 extra to be payed.

#bookingtip
If wish to travel from mumbai to delhi, then you have book well 1 month in advance specially in sleeper. Its always full for mumbai to delhi quota as along with NZM, meerut and SRE also come in same quota.
Take RLWL less than 40. Above it in sleeper , its very tough to confirm.
If you dont get tickets,then there is...
more...

three ways by which still you can travel from mumbai to delhi in this train:
1. Check BCT to JRC as its in GNWL ASR end to end quota, which majority of times remains vacant. If getting GNWL in SL till 60-70, take it. Confirmation has bright chances.
2. Check ST/BRC to NZM, sometimes this quota also remains vacant (personal experience) in SL, take it if don't wish to waste money. Reach ST by any earlier train and catch this.
3. Last option keep for premium tatkal. This is sure that you will get confirmed seat.
But during diwali and holi rush, don't wait and book 120 days arp. This train is a high demand train throughout 365 days but during diwali & holi, it gets filled up on the 1st day itself.