Apparently shaken by the development, the mother refused to discuss anything and even did not reveal her name when reporters approached the family here for their reaction to the arrest of IOC Marketing Manager Mohd Sirajuddin at Jaipur yesterday.
The father of the arrested official Saramust Ahmed, a former state government official, and brother left for Jaipur today.
Police said they may also send a team to Jaipur to gather information.
The Special Operation Group (SOG) and ATS of Rajasthan Police had arrested Sirajuddin under the Unlawful Activities (Prevention) Act for his alleged involvement in the activities of ISIS by supplying official inputs and recruiting organisation members in the country.
Objectionable materials were also seized from the house of Sirajuddin, who used to contact youths through social media, according to Police.