06666/06669 Punalur - Kollam - Punalur MEMU can be extended to Sengottai....It will provide evening connectivity from Kollam to Sengottai and Early Morning connectivity between Sengottai and Kollam.
QLN - SCT Express (06666)
QLN...
more... - 5:35 PM PUU - 6:50PM-7:00PM SCT - 9:15PM
SCT - QLN Express (06669)
SCT - 5:40 AM PUU - 8:00 AM - 8:10AM QLN - 09:25AM
Similarly TEN - SCT - TEN Express (06687/06684) and PUU - QLN - PUU Express (0669/06670) trains can be amalgamated to form QLN- TEN - QLN Express
QLN - TEN Express
QLN - 6:20AM PUU - 7:35AM-7:40AM SCT - 10:00AM-10:05AM TEN - 12:15PM
TEN - QLN Express
TEN - 1:50PM SCT - 4:10PM-4:15PM PUU - 6:45PM-6:50PM QLN - 8:05PM