This sentence is taken from a shayari( a form of poem) which is written by Azam jafri. it is mixup of hindi and urdu words that's why you didn't understand completely.
complete line of this poem is:
Tohmate To Lagti Rahi Roz Nayi Nayi Hum Par,
Magar Jo Sabse Haseen Ilzaam Tha Wo Tera Naam Tha!
In Hindi you can write like this:
तोहमत तो लगती रही रोज नयी हम पर , मगर जो सबसे हसीन इलज़ाम था वो तेरा नाम था !
And the translation of this line is: Every day one new allegation/accusation has been imposed on me (Tohmate To Lagti Rahi Roz Nayi Nayi Hum Par) , But your name was to the most beautiful accuation/blame.( the most beautiful accusation was name of you)
(Magar Jo Sabse Haseen Ilzaam Tha Wo Tera Naam Tha)