The Centre on Friday issued a revised guideline for international passengers amid the exponential rise of Omicron cases making 7-day home quarantine mandatory for all those coming from abroad. The new guideline will come into effect from January 11. On completion of their home quarantine, travellers will undergo an RT-PCR test, the revised guideline said. The revision of norms came amid a huge spike in covid cases, driven by Omicron variant. Watch this video for more.