"Sasi" is a colloquial usage which means to get trolled. This particular train
1) He has got Trolled many times. Initially supposed to run with LHB but the LHB given to it is doing an All India Tour, with the intended allotted coaches either running in various trains across the country, or stationed at various places. Then the new ICF coaches which it got temporarily were taken off by TVC division when an emergency arose due to issues with the LHB coaches which they had planned for TVC NZM premium spl (allotted for sasikuttan again), and they later got spread over a lot of trains, including 16333/34, 12607/98 and 22641/42.
2)...
more... He has a huge fan fare among our local RF group, and has trolled everyone who tries to capture him, including Akhil, Shuhaib et al.
Hence the name.