Actually it was muslims who upto this day cry that injustice was done to them.
India-Pakistan Partition 1947
The Indian Independence Act, a bill providing independence to India, was introduced in the House of Commons on 4 July, 1947, and was passed on 15 July, 1947. On 16 July 1947, it was passed by the House of Lords and received the Royal assent on 18 July, 1947. The Boundary Commission appointed under the Indian Independence Act 1947, submitted its report, commonly known as the Radcliffe Award, on August 12, 1947. The Boundary Commission awarded to India parts of several districts of Punjab in which the population was predominantly Muslim. Under the Award,
the Muslim majority areas of Gurdaspur, Batala, Ferozepur, and Jullundhar were given to India.
Sir Cyril Radcliffe, the Chairman of the Boundary Commission on India and Pakistan, had handed over the Muslim majority districts of Gurdaspur and Kapurthala to India. Radcliffe decided to allot three-fourth of the Muslim majority district of Gurdaspur to India, giving India access to the State of Jammu and Kashmir. Without Gurdaspur India had no claim whatsoever to Kashmir. As the events unfolded, later it was revealed that this crude violation of the June 3 Partition Plan might have been deliberatly undertaken to afford India a corridor and access to the valley of Kashmir. The Muslims with marginal majority in these two districts of the Punjab were taken aback when they learnt on 15 August 1947, four days after the declaration of independence, that they were in India and not in Pakistan. Simultaneously, the Hindus and Sikhs, aided by militias and partisan elements of soldiery from Bikaner, Kapurthala and Patiala states started a down-right massacre of Muslims in East Punjab. In a matter of a few weeks hundreds of thousands of Muslims who were not killed were thrown out of the borders.