Kala Sarpa Dosha is an inauspicious yoga in Vedic astrology that occurs when all planets are positioned between Rahu and Ketu in the birth horoscope of a person. It is believed to occur as a result of ones past deeds or karma. Kala Sarpa Dosha is categorized into twelve types based on the position of Rahu and Ketu and the other planets. Some of the types of Kala Sarpa Dosha and their effects are:

• Ananta Kala Sarpa Dosha: This Dosha involves problems related to health, wealth, and relationships.
• Kulik Kala Sarpa Dosha: This Dosha can cause problems related to career, finances, and health.
• Vasuki Kala Sarpa Dosha: This Dosha can cause problems related to career, finances, and relationships.
• Shankpal Kala Sarpa Dosha: This Dosha can create obstacles in the profession, financial loss due to family members, difficulty in education, etc..
• Padma Kala Sarpa Dosha: This Dosha can lead to problems in education, love matters, and health issues for spouse and children.
• Mahapadma Kala Sarpa Dosha: This Dosha can cause issues with maternal relatives and some financial crisis.
• Takshak Kala Sarpa Dosha: This Dosha can cause problems related to career, finances, and relationships.
• Karkotak Kala Sarpa Dosha: This Dosha can cause problems related to career, finances, and relationships.
• Shankachood Kala Sarpa Dosha: This Dosha can cause problems related to career, finances, and relationships.
• Ghatak Kala Sarpa Dosha: This Dosha can cause problems related to career, finances, and relationships.
• Vishdhar Kala Sarpa Dosha: This Dosha can cause problems related to career, finances, and relationships.
• Sheshang Kala Sarpa Dosha: This Dosha can cause health issues and sleeplessness.

There are various remedies and Poojas that can be performed to wear off the ill effects of Kala Sarpa Dosha, such as pleasing Lord Shiva and chanting Gayatri Mantra or any Mantra of Lord Shiva. Performing the Pooja on the Amavasya is considered to be highly auspicious. It is important to note that not all astrologers believe in the ill effects of Kala Sarpa Dosha, and some consider it to be a normal planetary combination.