Answer

During a Jain fast, Tivihar generally means:

• No solid food
• No liquids like milk, tea, juice, buttermilk, etc.
• Only boiled water is allowed
• Boiled water is taken only during the permitted daytime period
• No water is taken after sunset

Explanation

In Jain practice, fasting rules are usually understood as:

• Chovihar — no food and no water after sunset; during the fast, even water may be avoided depending on the vow.
• Tivihar — food is avoided, but boiled water is allowed during the day.
• Do-vihar / Be-vihar — more relaxed forms where certain limited items may be allowed depending on the vow and tradition.

For Tivihar upvas, the usual rule is that you may drink only properly boiled and cooled water before sunset. The exact time for stopping water should be followed according to your local Jain tradition and guidance from your guru, sadhu-sadhvi, or temple.

Spiritual Understanding

Tivihar is not only about avoiding food. Its deeper purpose is:

• reducing attachment to taste and comfort,
• practicing self-control,
• increasing awareness of the soul,
• supporting ahimsa by limiting consumption.

Takeaway

In simple words: during Tivihar fast, you do not eat food, and you may take only boiled water during the allowed daytime period. For exact timing and festival-specific rules, follow your local Jain guru or sangh tradition.