VISHNU MANTRA
While worshipping Lord Vishnu, first of all a devotee should worship the 'Aasan' of the deity by chanting
- OM VASUDEVA AASANAY NAMAH.
He should then make salutations to Lord Vishnu by chanting the following mantras--
OM VASUDEVAY MURTAYE NAMAH,
OM AIM OM NAMO BHAGAVATE VASUDEVAY NAMAH,
OM AAM OM NAMO BHAGAVATE SANKARSHANAY NAMAH,
OM AIM OM NAMO BHAGAVATE PRADYUMNAY NAMAH,
OM AH OM NAMO BHAGAVATE ANIRUDDHAY NAMAH.
Subsequently, a devotee should worship the various incarnations of Lord Vishnu, his weapons as well as his different mounts by incorporating the rituals of 'Shodashopachar' and by chanting the following mantras.
OM NARAYANAY NAMAH,
OM TATSAD BRAHMANE NAMAH,
OM HOOM VISHNAVE NAMAH,
OM HRAUM NAMO BHAGAVATE NRISINHAY NAMAH,
OM BHUH OM NAMO BHAGAVATE VARAHAY NAMAH
SHIVA MANTRA
OM HRAM HRIDAYAY NAMAH,
OM HRIM SHIRSE SWAHA,
OM HOOM SHIKHAYAI VASHAT,
OM HRAIM KAVACHAY HOOM,
OM HRAUM NETRA TRAYAY VAUSHAT,
OM HRAH ASTRAY PHAT.
Having accomplished the above mentioned rituals, a devotee should then worship each of the five faces of Shiva by chanting the following mantras -
OM HRIM VAAMDEVAY NAMAH,
OM HOOM AGHORAY NAMAH,
OM HRAIM TATPURUSHAY NAMAH,
OM HRAUM ISHANAY NAMAH.
SARASWATI MANTRA
A devotee should begin his worship by making salutations to goddess Sarswati by chanting-
OM HRIM SARSWATYAI NAMAH.
OM HRAM HRIDAYAY NAMAH,
OM HRIM SHIRSE SWAHA,
OM HOOM SHIKHAYAI VASHAT,
OM HRAIM KAVACHAY HOOM,
OM HRAUM NETRA TRAYAY VAUSHAT,
OM HRAH ASTRAY PHAT.
NAVAGRAH MANTRA
Describing the significance of worshipping Navgraha (nine planets), Lord Vishnu told Rudra. One who worships the Navgraha with appropriate rituals attains all the four 'purusharth'(objectives of man's life)-dharma(religion), artha(money), kaam(sex) and moksha(salvation).' He then went on to give various mantras related with the Navgrahas, which a devotee should chant while worshipping them --
SURYA(SUN) -- OM SURYA MURTAYE NAMAH
OM HRAM HRIM SAH SURYAY NAMAH.
CHANDRAMA(MOON)-- OM SOMAY NAMAH.
BHAUM(MARS)--OM BHAUMAY NAMAH.
BUDDH(MERCURY)--OM BUDDHAY NAMAH.
VRIHASPATI(JUPITER)--OM VRIHASPATAYE NAMAH.
SHUKRA(VENUS)--OM SHUKRAY NAMAH.
SHANI(SATURN)--OM SHANAISHCHARAY NAMAH.
RAHU(DRAGON'S HEAD)--OM RAHAVE NAMAH.
KETU(DRAGON'S TAIL)-- OM KETAVE NAMAH.