The following pre-intimation or omens are related to the serpents:-
1) When an individual sees a serpent crawling from the right to the left side it is considered inauspicious
2) When a snake comes crawling from the front side it indicates enmity
3) If a black snake is seen on the right side before entering a building it indicates inevitable victory over the enemy.
4) When a black cobra with his hood raised is seen it may well lead to an increase in wealth and prosperity.
5) It is a bad omen to witness a serpent before setting out on a journey.
6) Seeing a white snake is inauspicious.
7) While starting on a journey if a snake is seen and after that a donkey is seen on the left side it is considered to be a good omen.