Lucknow/Varanasi, Nov. 30 -- In the second major breakthrough in the Rs.100-crore illegal Codeine-based cough syrup nexus, the Sonbhadra police on Sunday arrested alleged smuggler Bhola Prasad Jaiswal, father of the fugitive kingpin Shubham Jaiswal, from Kolkata, West Bengal.

This arrest comes three days after Amit Kumar Singh alias Amit Tata, resident of Jaunpur, was taken into custody from Lucknow on November 27, for allegedly being a key figure in operating the cough syrup nexus.

Bhola Prasad was preparing to flee abroad to join his son Shubham Jaiswal, who is stated to have fled to Dubai along with his family and two associates after the scam came to light, officials familiar with the matter said.

The arrest is the latest developme...