The top most 25 sins mentioned in Vedic and allied Scriptures (adapted for Kali Yuga) are to be avoided compulsorily if you want to get quick progress in Spiritual life and material attainments for Security, Peace and Happiness. Each sin is equally cruel to the other from the spiritual point of view.
One may have Fame, Name, Power, Status or Authority, Family, Wealth or Affluence owing to operating Prarabdha—positive fixed karmas earned through actions of past births, but Peace, Fulfilment, and Bliss or Ananda can be guaranteed only by avoiding consciously or intentionally (at least from now) these sins.
Also only by acting virtuously, sinning no more consciously, and expiating you can really put an end to your unending and unsolvable fixed or capital problems, pain and suffering as the negative karmic influence caused by these sins can bind you with unsolved capital or fixed problems in this birth and future births.
Top 25 Sins:
1. Violence in general – physically, mentally or verbally towards women, children, and weaker sections of society. Violence in any form towards anyone is a great sin.
2. When inviting a guest of honour for having food at home, showing partiality in measure and quality of food offered to the guest versus food the host themselves intake.
3. Donating a piece of land to a good cause or to poor and then claiming or taking it back. Also land grabbing in any form.
4. Enjoying the company of a woman when she is young and then leaving her in older age.
5. Having sex (even with own wife) on the day of Amavasya and other occasions after performing Tharpanam for ancestors.
6. Not showing gratitude to someone that who has offered food.
7. Offering the hand of one’s daughter (with daughter’s permission) to someone and then backtracking on that promise.
8. Eating anything without taking bath on Sashti, Ashtami, Amavasya, and Chaturdasi. (Note that the vedic proof, ”Snaathva Bhunjeeta” requires one to consume anything only after taking bath, any day of the week).
9. Promising a donation and then backtracking on it.
10. Having sex with a friend’s wife (or husband) or other person’s wife (or husband) or any improper / immoral sex outside marriage – Adultery leading to hurt, cheating and betrayal in general.
11. Based on proof, “Satyam Bhoota hitam proktam”, not being truthful. (i.e telling lies) is a sin.
12. Leaving (Divorcing) one’s wife or husband for convenience and selfish reasons (i.e., for materialistic or pleasure oriented reasons).
13. Closing wells and tanks, cutting plants and trees, disturbing or shutting honeycombs or beehives, snake pits, nests of birds.
14. Sin attributed to Brahmahatyam (killing or harming a Vedic Brahmin).
15. Also Harming / torturing/ beating /killing any person including removal of foetus (Abortion).
16. Drinking Alcohol [As alcohol triggers or motivates a person to act based on deep rooted vasanas or samskaras subconsciously, suppressing the Viveka or discriminating power resulting in new Karmas by wrong actions (mentally, physically or verbally) which will further promote karmic bondage negatively and therefore consuming it is sin. In addition it has the potential to reduce the life span by being hazardous to health / essential organs, thereby forcing out early the soul from the Temple(body)]
17. Stealing and cheating in any manner.
18. Associating or abetting with murderers, terrorists, rapists or sexual offenders.
19. Praying for destroying or harming others by Worshipping Dur-devatas and performing black magic.
20. Killing or harming cattle, animals and birds.
21. Polluting or contaminating holy rivers, water bodies, nature and environment causing health hazards to society.
22. Not paying direct or indirect taxes properly (Tax evasion is sin not Tax avoidance)
23. Not contributing when affordable to one’s own native / village, temples and development.
24. Insulting or treating badly (or malicious gossip about) holy people irrespective of religion. (This may result in coma or prolonged suffering during death)
25. Indifferent to elderly or old aged people and ungrateful to parents.
Any other actions not mentioned here but resulting indirectly in same results of above actions also termed as major Sin. (Mahapathakam or Atipathakam)
A person who has acted sinfully destroys his sin by acting virtuously afterwards, sinning no more and by penances. [Mahabharata]
You may consult your Guru or Vedic expert for appropriate expiation and implement them for any of the above sins committed. To err is human, to forgive divine.
Please be conscious to avoid these sins for greater spiritual progress and quicker Self-realisation.