New Delhi: Heavily-armed terrorists donning Army uniforms opened fire on a moving bus and raided a police station in Punjab's Gurdaspur, killing six persons. Unfortunately, India is no stranger to terror attacks blamed on Pak soil.
Here's taking a look at key events and flare-ups over the last 15 years that marked the rocky relationship between India and Pakistan.
2015: Terrorists in Army uniform attack police station in Gurdaspur, Pakistan hand suspected
2014: Modi invites SAARC leaders, including Pak for his swearing-in; Modi-Nawaz bilateral talks; Secy-level talks planned for August cancelled as Pak envoy Abdul Basit meets Hurriyat leader Shabir Shah
2013: Jammu terror attacks ahead of PM-level talks, over 100 ceasefire violations along LoC
2012: Zardari travels to Delhi and Ajmer, meets Manmohan in the highest-level meeting on each other's soil in seven years.
2011: Manmohan, Gilani meet in Mohali over dinner on sidelines of Indo-Pak cricket match in March.
2010: India and Pakistan's foreign secretaries meet in New Delhi in Feb, followed by foreign ministers meeting in Islamabad in July.
2009: Pakistan admits Mumbai attacks were planned on its soil
2008: Mumbai terror attacks on Nov 26; Jaipur terror attack in May; Indian embassy in Kabul attacked in July, ISI role suspected; Bangalore and Ahmedabad terror attacks
2007: Twin blasts in Hyderabad, 42 killed; back channel talks continue
2006: Mumbai train bombings, over 200 killed
2005: Three explosions in New Delhi in October, 62 killed; Kashmir separatists and Lashkar-e-Toiba blamed
2004: Atal Bihari Vajpayee travels to Pak in Jan, Musharraf promises no anti-India activity; Indo-Pak composite dialogue starts in June
2003: Twin car bomb blasts in Mumbai in August; Pak-based Lashkar-e-Taiba blamed for the attack
2002: Military standoff between India, Pak Armies; Operation Parakram - troops stand eye-to-eye on either side of IB and LoC
2001: Attack on Indian Parliament on 13 December, perpetrators - Lashkar-e-Taiba (Let) and Jaish-e-Mohammed (JeM)
1999: Kargil War in May; Indian Airlines Flight 814 (IC 814) hijacked in December by Pak-based Harkat-ul-Mujahideen