The defence ministers of India, Russia, China and other member nations of the Shanghai Cooperation Organisation (SCO) on Friday deliberated on pressing regional security challenges and related issues at a conclave hosted by New Delhi. The meeting, chaired by Defence Minister Rajnath Singh, is also expected to review the overall situation in Afghanistan. Chinese Defence Minister Li Shangfu, Russia's Sergei Shoigu, Tajikistan's Colonel General Sherali Mirzo, Iran's Brigadier General Mohammad Reza Gharaei Ashtiyani and Kazakhstan's Colonel General Ruslan Zhaksylykov are among those attending the meeting in Delhi.