Arunagirinathar had created 9 books as thiruvaguppu is one among them.It has 25 parts.Amoung them velvaguppu and velvanguvaguppu has been separately taken..It explains about vel in lord muruga's hands. 16 stanzas has been arranged by vallimalai thirupugal sri sachinathantha swamigal and produced as velmaaral . Kandhar alangaram and kandhar anthathi has been added in front and last part of it and is created according to saktha way of worship.
This song is recited for controlling cancer, heart problems, kidney problems, removing obstacles in marriage, removing obstacles in getting a child and remove agnana for the worshipper along with Goddess Thirumagal blessings.
Vel maaral in you tube - https://www.youtube.com/results?search_query=vel+maaral