I happen to read this mail very late.. (i guess).. but, there is a particular slogam in narayaneeyam (ie ) in Chapter 8 and slogam 12 , where the slogam starts with
(asmin paraatman nanu paadmakalpe) which is considered as a very powerful slogam which can be recited everyday for 45 days for 108, 64, 32 or even 16 times... hope lord Guruvayurappan shower his blessings to all.