LUCKNOW, Jan. 9 -- Even as action continued on the ground to untangle Lucknow's traffic mess, some breathing space opened up on the state capital's roads in select areas on Thursday on the back of a sweeping enforcement drive that has resulted in the issuing of over 20,000 challans in just four days.

After the massive traffic gridlock on New Year's Day, the crackdown began on Monday when traffic police issued around 7,000 challans across the state capital.

The no-nonsense approach to restoring order on the city's roads continued on Tuesday when 5,051 challans were issued with a major focus on two-wheelers found violating traffic norms.

On Wednesday, 4,048 challans were issued as action was taken against vehicles flouting traffic rules,...