गुरु (Guru) पूजा -

For a complete and effective Guru Graha (Jupiter) mantra chanting, the recommended number of recitations is 19,000 times.
In the Kali Yuga, this is often multiplied by four, making the full total 76,000 chants.
For daily practice, chanting 108 times is also considered very beneficial.

Guru Beej (Seed) Mantra -
Om Gram Greem Graum Sah Guruve Namah
(ॐ ग्रां ग्रीं ग्रौं सः गुरवे नमः)

Guru Gayatri Mantra -
Om Angirasaya Vidmahe Divyadehaya Dhimahi Tanno Jeevah Prachodayat
(ॐ अंगिरसाय विद्महे दिव्यदेहाय धीमहि तन्नो जीवः प्रचोदयात्)