group in Pakistan and also an important ethnic group of northern India. The founder of Sikhism was born in the modern-day Pakistani Punjab province, in the city of Nankana Sahib. Each year, millions of Indian Sikh pilgrims cross over to visit holy Sikh sites in Nankana Sahib. The Sindhi people are the native ethnic group of the Pakistani province of Sindh. Many Hindu Sindhis migrated to India in 1947, making the country home to a sizeable Sindhi community. In addition, the millions of Muslims who migrated from India to the newly created Pakistan during independence came to be known as the Muhajir people; they are settled predominantly in Karachi and still maintain family links in India. Relations between Pakistan and India have also resumed through platforms such as media and communications. Aman ki Asha is a joint venture and campaign between The Times of India and the Jang Group calling for mutual peace and development of diplomatic and cultural relations. Geographic links The India–Pakistan border is the official international boundary that demarcates the Indian states of Punjab, Rajasthan and Gujarat from the Pakistani provinces of Punjab and Sindh. The Wagah border is the only road crossing between India and Pakistan and lies on the famous Grand Trunk Road, connecting Lahore, Pakistan with Amritsar, India. Each evening, the Wagah-Attari border ceremony takes place, in which the flags are lowered and guards on both sides make a pompous military display and exchange handshakes. Linguistic ties Hindustani is the lingua franca of North India and Pakistan, as well as the official language of both countries, under the standard registers Hindi and Urdu, respectively. Standard Urdu is mutually intelligible with standard Hindi. Hindustani is also widely understood and used as a lingua franca amongst South Asians including Sri Lankans, Nepalis and Bangladeshis, and is the language of Bollywood, which is enjoyed throughout much of the subcontinent. Apart from Hindustani, India and Pakistan also share a distribution of the Punjabi language (written in the Gurmukhi script in Indian Punjab, and the Shahmukhi script in Pakistani Punjab), Kashmiri language and Sindhi language, mainly due to population exchange. These languages belong to a common Indo-Aryan family that are spoken in countries across the subcontinent. Matrimonial ties Some Indian and Pakistani people marry across the border at instances. Many Indians and Pakistanis in the diaspora, especially in the United States, intermarry, as there are large cultural similarities between