Sixth Month
Recite Ajitshanti stotra three times a day

1) For hair and back groth without any hindrance -
ॐ ह्रीं अर्हं श्री अरनाथाय नमः
(Om Hreem Arham Shree Arnathay Namah:)

2) Beej Mantra of saraswati devi: 
ॐ ऐं नमः १०८ बार 
(Om Aim Namah: 108 times)