Answer : 4. " पंजाब"
Explanation :

1. Punjab Chief Minister Bhagwant Singh Mann has laid the foundation stone of Saragarhi Memorial in Firozpur.

2. A deep tribute to the brave Sikh warriors who sacrificed their lives in the historic battle of Saragarhi (September 12, 1897).

3. 21 soldiers of the 36 Sikh Regiment bravely defended their post against about 10,000 Afghan attackers.