New Delhi, Oct 01: CPI-M today condemned the landmine attack on the convoy of Andhra Pradesh Chief Minister N Chandrababu Naidu in which he and his cabinet and party colleagues suffered minor injuries. Party politburo member Sitaram Yechury condemned the incident near Tirupati township and demanded immediate steps to apprehend the culprits. Naidu, who is on top of the hit-list of naxalites, was discharged from the Sri Venkateswara Institute of Medical Sciences after treatment for the injuries. Bureau Report