नहीं कोई गम, रेलवे से हैं हम - Aman

Hi All,
Need some guidance on below specified travel from TN/KL travellers. I would like to visit Guruvayur, Trivandrum followed by Tiruchendur around Aug 15th from RJY.
1) On 14th August by Shalimar - TVC(22642) to Thrisur followed by guruvayur temple darshan (15th Aug)
2) After Guruvayur darshan travel to Trivandrum by 16128 (Reaching on 16th Morning followed by darshan of padmanabha swamy...
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temple.
3) On the same day i.e. 16th August from Trivandrun to Tirunelveli by TVC-TPJ intercity express, get down at tirunelveli followed by tiruchendur darshan. Whether i can complete tiruchendur darshan on the same day evening i.e on 16th august so that i can catch CAPE-hwh train on 17th aug morning from TEN.
Whether time sufficient to complete above trip. Any ideas/suggestions are welcome.
Thanks in advance