CHENNAI: Nearly 150 trainee cadets and family members of army officers took part in the yoga session held at the Officers Training Academy, St Thomas Mount on Sunday. Physical training instructors taught the participants at the Acharya Training Ground in the OTA campus a wide range of asanas. The intense session proved difficult as some tough cadets were seen grimacing in pain, unable to connect the tips of their hand and feet around their back. Wives and daughters of army officials were trained in a separate yoga session.