Answer

Yes, during Ekashna, many Jain households do use milk from dairy packets such as Amul, Nandini, or similar dairy milk, provided it is consumed within the permitted time and according to one’s family/guru tradition.

Explanation

In Jain practice, Ekashna means eating only once in the day. During that one sitting, milk is generally considered acceptable by many Jain traditions, but there are a few important points:

• It should be taken only during the one meal sitting.
• It should not be consumed again later separately.
• It should be checked for ingredients if it is flavored, processed, or mixed with additives.
• Plain milk is generally treated differently from packaged beverages like milkshakes, flavored milk, or processed dairy drinks.

Packet milk like Amul or Nandini is commonly used because it is regular dairy milk, but some stricter practitioners may avoid packaged or commercially processed items during tapasya.

Spiritual Understanding

The purpose of Ekashna is not only limiting food, but also developing:

• self-control,
• simplicity,
• awareness of consumption,
• restraint over taste and desire.

So even if milk is allowed, it should be consumed with restraint and not as indulgence.

Takeaway

Plain packet milk such as Amul or Nandini is generally used by many Jains during Ekashna, but follow your guru, family, or sampraday’s maryada, especially if you are doing Ekashna as a formal vow or tapasya.