Raziq was among three people killed in a brazen insider attack on a high-level security meeting in Kandahar city that was attended by General Scott Miller, the top USA and North Atlantic Treaty Organisation commander in Afghanistan.
More than 500,000 voters are expected to vote in peril of their lives in the province of Kandahar, the largest in the country and the birthplace of the taliban.
The voting process in Kandahar started under tight security at 08:00 a.m. local time, as security forces have started checking cars crossing throughout the election sites in the provincial capital Kandahar city and other districts.
Residents braved threats of militant attacks to queue on Saturday outside more than 170 polling stations across the province amid heavy security.
The Electoral Complaints Commission has received thousands of complaints following three days of voting in 33 out of 34 provinces.
Around 300 people had been killed or injured last Saturday in the margin of the vote, according to a count by the AFP.
Kabul police chief spokesperson Basir Mujahid said the bomber exploded his vehicle outside the office of the Independent Election Commission after police suspected his intentions and opened fire.
In recent months, there have been dozens of attacks on people involved in the election process, including candidates and voters.
That was significantly higher than the government's casualty figures, supporting speculation that officials had deliberately downplayed the violence so voters would not be scared off.
The latest assault by the Taliban comes amid a flurry of US-led diplomatic activity to convince the group to negotiate an end to the 17-year war.
More than 2,500 candidates, including mullahs, journalists and sons of warlords, are competing for 249 seats in the lower house.
This year's elections have become the first parliamentary election in Afghanistan since 2010.
On October 20, Afghanistan held its much-delayed parliamentary elections, the provisional results of which will be announced on November 10 and final ones on December 20.