AMRITSAR: Head Granthi of Sri Darbar Sahib and former Jathedar of Akal Takht, Giani Raghbir Singh, on Tuesday launched a scathing attack on the Badal family, alleging that “major scams” were committed in the Shiromani Gurdwara Parbandhak Committee (SGPC) under their patronage, causing serious damage to Sikh institutions.