Adhyayana Uthsavam Thirunedunthandagam
In the entire Nalayira Divya Prabhandham, if there is one thirumozhi (10 Pasurams) that packs Manthra Thrayam, Artha Pachagam, worship the five forms of Sriman Narayana, it is Thirunedunthandagam composed by Parakalan alias Thirumnagai Azhwar.
No wonder Sri Parasara Bhattar used this as waepon to win over Sri Madhavachariar in Melkote and bring his as sishya Nanjiyar. Lord Ranganatha was quite impressed not only with Parasara's debating skills but also with the Thiruneduthandagam Pasuram, he blesssed Thirunedunthandagam to be the first Prbhandham to be chanted to start the Proceedings of Adhyayana Utsavam.
http://srimannarayana108.blogspot.com/2013/07/blog-post_28.html
Thirunedunthangaam second Thirumozhi - Parakalan as Parakala Nayaki feels the pangs of sepoaration from The Lord and Parakala Nayaki's mother describes her condition.
http://srimannarayana108.blogspot.com/2013/08/thirunedunthangaam-second-thirumozhi.html
Thirunedunthangaam Third and final Thirumozhi (21-30) - Parakala Nayaki feels the pangs of separation from The Lord and shares her condition with her Thozhi (friend).
http://srimannarayana108.blogspot.com/2013/08/thirunedunthangaam-third-and-final.html