Goods trains? You forgot them .They run crazy in BZA-GDR and JTJ-MAS sections. Including all they are busy comparatively than Ers-SRR.
Yes i know Ers-Srr section needs upgradation and SR should consider upgrading its MPS and 3rd line.
There...
more... is huge lack in both rail/road infra in Kerala with dense population. Railways should seriously look for alternative lines in kerala and develop existing.