Obviously not enough. But there are presently no RSA options at HWH. HWH-Jodhpur can be a good option but it has slip coaches, HWH-ASR mail, HWH-CSTM mail have late morning arrivals at HWH and are constantly extremely late and if RSA is done with them, it would lead to some serious rescheduling of the train. HWH-Kalka mail also has slip coaches, HWH-JMP exp has a pretty small rake compared to Saraighat exp. HWH-RJPB exp could have been the best option but it belongs to RJPB, and I don't see any other daily RSA option from HWH. They could have run a train from Howrah to Agartala starting from Howrah at late night and arriving Agartala day after tomorrow early morning. The train could be made daily and would have good occupancy as there are many travellers from West bengal to Tripura. this train could have RSA with Saraighat also. But then...
more... the departure time of 12346 would have to be changed from noon to evening from guwahati.