In the early hours of Septenther 6, Indian forces crossed the international boundary between Pakistan and India and launched attack on _____?

In the early hours of Septenther 6, Indian forces crossed the international boundary between Pakistan and India and launched attack on _____?

چھ (6) ستمبر کے اوائل میں، ہندوستانی افواج نے پاکستان اور ہندوستان کے درمیان بین الاقوامی سرحد عبور کی اور _____ پر حملہ شروع کیا؟
Explanation

In the early hours of September 6, Indian forces crossed the international boundary and launched an attack on Sialkot.

This action occurred during the Indo-Pakistani War of 1965.