Answer

No, secretly throwing away the photo is generally not the best Jain action.

If you feel that following that guru is mithyātva, the Jain way is to respond with:

• ahimsa: avoid hurting feelings or creating conflict
• satya: speak truthfully, but gently
• samyam: keep self-control
• kshama: patience and forgiveness

Explanation

In Jain Dharma, even if you believe something is spiritually incorrect, you should not act out of irritation, disrespect, or secrecy.

Throwing away the photo when your parents are not there can lead to:

• family conflict
• dishonesty
• mental disturbance
• negative karma through disrespect and anger

A better approach is:

• Do not bow to or worship that photo if you do not accept it.
• Keep your own worship space separate if needed.
• Speak politely to your parents if the matter must be discussed.
• If you cannot discuss it peacefully, remain silent and maintain your own faith without insulting theirs.

Spiritual Understanding

In Jainism, right faith is important, but so is right conduct.

Even when correcting mithyātva, the correction should not become:

• anger
• pride
• deceit
• disrespect
• violence in thought, word, or action

True spiritual strength is shown by restraint, not by destruction.

Takeaway

Do not throw away the photo secretly. If you believe it is wrong, avoid participating respectfully and protect your own samyak drashti through calm, honest, and non-violent conduct.