NEW DELHI: BJP president Amit Shah on Sunday slammed opposition parties for their resistance to the National Register of Citizens NRC ) in Assam and also said the government had initiated a campaign across several cities to identify Rohingya migrants and they would be deported.Shah reiterated the party's commitment to implement NRC in Assam and to offer citizenship to Hindu and other minorities facing persecution in neighbouring countries and seeking refuge in India."We firmly denounce the criticism of NRC. Most opposition parties know about the gravity of the issue as when in power, they had accepted that millions of illegal immigrants have settled in Assam and other states. However, they have changed their stance for vote bank compulsions and are now siding with the illegal immigrants," Shah said on the concluding day of the BJP national executive meeting here.Shah's apparent reference was to Congress and West Bengal CM Mamata Banerjee, who has threatened a "civil war" in case NRC was expanded to other states.However, the chorus has been growing in the ruling party about similar action in the north-east states, West Bengal and Bihar, where Muslim migrants from Bangladesh have allegedly settled.Assam, which has faced an influx of people from Bangladesh since the early 20th century, is the only state with an NRC, which was first prepared in 1951. The final list of the NRC in Assam will be published by December. The draft NRC published recently excluded 40.7 lakh of the 3.29 crore applicants."BJP firmly believes that the Modi government at the Centre will not allow illegal migrants to use Indian soil as safe refuge. All illegal immigrants are being identified and they will be deported after cancellation of their citizenship," Shah said.Shah hailed Assam CM Sarbananda Sonowal , who was present in the executive meeting, for fulfilling the poll promise of NRC.Making no bones about his party's concern for its core constituency of Hindus, the BJP chief said the party strongly supported the government decision to make changes in the Citizenship Act allowing citizenship to Hindus, Buddhists, Sikhs and Christians migrating from neighbouring countries like Bangladesh, Pakistan and Afghanistan.Shah made it amply clear that his party was considerate about minorities from neighbouring countries fleeing persecution and had not migrated due to economic reasons as was the case with Muslims from Bangladesh.