Om Jataa Jut Samaayuktamardhendu Krit Lakshnam
Lochanyatra Sanyuktam Padmendu Sadya Shan Naam
This mantra is done before chanting other Durga Mantras. It helps one to achieve better concentration in his work and in anything one does. If a student lacks concentration while studying, this mantra will help him a lot.