Pune, Feb 21 (IANS) A 23-year-old student from Kolkata, who was injured in the Feb 13 terror blast, died at a hospital here early Sunday, taking the toll to 14. Rajeev Agarwal was a final year law student of the Symbiosis Law College.

Six more patients continue to be critical in intensive care units of different city hospitals while 33 others are undergoing treatment for injuries.

Rajeev breathed his last at 5.45 a.m. in Jehangir Hospital here, an official from the Pune police control room said.

His body will be handed over to his father -- who arrived here from Kolkata a few days ago -- after completing the relevant formalities, the official said.

Four among those who lost their lives in the terror blast that ripped through the German Bakery in Koregaon Park area are foreigners.

Police have tightened security in all parts of Pune and implemented several measures in this regard, Police Commissioner Satyapal Singh said here Saturday.

These include prohibiting two-wheeler drivers from covering their faces in any manner, including wearing face masks and scarves - a part of normal attire in Pune since the outbreak of Swine-flu in May last year.

A security sensitization programme has been undertaken in 103 educational institutions covering over 40,000 students in the past three days.

Combing operations are continuing in different parts of the city 'or wherever there is suspicion,' Singh said.