Bhutan's King Jigme Khesar Namgyel Wangchuk, Nepal's Foreign Affairs Mininster PK Gyawal, Sri Lanka acting Foreign Minister Lakshman Kiriella, Bangladesh Foreign Minster Abul Hassan Mahmood Ali and Pakistan Law Minister Ali Zafar will arrive in Delhi today to pay tributes to former PM Atal Bihari Vajpayee: news agency ANI