Singh called up Karnataka Chief Minister Siddaramaiah to express concern over the brazen attack on the family members of retired Sikh Army officer Colonel R S Uppal, a spokesperson said.
He urged Siddaramaiah to provide protection to the family and to direct the police to arrest the culprits immediately.
The Karnataka chief minister assured Singh of all support from his government to Uppal's family, the Punjab government spokesperson said here.
He added that Singh decided to call up Siddaramaiah, especially, in view of Uppal's charges that the Bangalore police failed to provide security to his family despite complaints of threats received earlier from unknown persons.