Answer

During Paryushan, if you want an alternative to limbu (lemon), you can use:

• Amchur (dry mango powder)
• Kokum
• Tamarind / Imli — if acceptable in your family tradition
• Dry pomegranate powder (anardana)

Explanation

Many Jains avoid fresh green vegetables, roots, and certain fresh items during Paryushan according to their family or sampraday tradition. Since lemon is fresh and contains seeds, some families avoid it.

Dry souring agents like amchur or kokum are commonly used as substitutes because they give sour taste without using fresh lemon.

Takeaway

The safest option is usually amchur or kokum, but follow the rule practiced in your home, guru-parampara, or sangh during Paryushan.