The explosion was caused by a tractor filled with explosives, said a spokesman of Afghanistan's interior ministry
Vice Presient Abdul rashid Dostum, who was travelling in an armoured vehicle, was unharmed
The bomber targeted a delegation from the minority communities that was travelling to the governor's residence in Jalalabad on Sunday for a meeting with President Ashraf Ghani
The deceased, Avtar Singh Khalsa, had planned to contest the single seat reserved for the Hindu and Sikh communities in Afghanistan. Khalsa was travelling in a convoy when the explosion occurred
Kabul attack: Suicide blast rocks Afghanistan; casualties not known
The Taliban allegedly conducted the attack to avenge deaths of 32 civilians, who died due to US air strikes in Kunduz province
However, conflicting details have emerged putting the number of those killed between 10-11 people