Delhi BJP working president Virendra Sachdeva was detained on Thursday while trying to breach a police barricade during a protest against Deputy Chief Minister Manish Sisodia over allegations that he steered a political intelligence unit to spy on rivals. Members of the BJP staged a protest near the Delhi Secretariat, demanding Mr Sisodia's removal after the Central Bureau of Investigation (CBI) said the Aam Aadmi Party (AAP) leader had formed the "Feedback Unit" or "FBU" after it came to power in the capital in 2015.