Barech was the son of Sharakhbun (Sharafuddin), whose other sons were Tareen, Shirani, Miana and Urmur.
Following the impeachment of his wife, Shirani Bandaranayake, Kariyawasam was arrested on charges of bribery in which he was alleged to be involved in, which was listed as reasons for the impeachment of his wife.
The Shirani, a collection of Pashtun tribes, migrated from Barkhan Balochistan to Taunsa, Khawaja Shah Suleman came from Darug Balochistan and belong to jaffar tribe.