Till the time the ERS-Allp-KYJ section is not doubled highly unlilkey chances of more trains in this section. It is single line from ERS-KYJ and few patches of doubling. Also while the TT is good, it is peak hrs at TVC/KCVL so that also is a big challenge. Maybe in future once doubling is done and capacity is enhanced there is a chance. As of now many trains like Ajmer-Ernakulam, Pune-Ernakulam are waiting for extensions till TVC but are getting rejected for the same reason