LOCKED UP: Mental health suffers when prisoners spend up to 23 hours a day in their cells; whereas (inset, left) outdoor facilities reap real benefits

by NADEEM BADSHAH CALL TO FOLLOW INDIA’S LEAD AND INSTALL OUTDOOR TRACKS IN JAILS PRISONS across Britain should follow India’s lead and have outdoor running tracks to boost inmates’ physical and mental health, campaigners have urged. Ray Tindall, one of six British men jailed in Chennai for four years on weapons charges, said that while he was in custody, he ran a total of 7,652 miles around an 800-metre circuit. The former soldier from Chester is set to run 18 marathons in 18 days in September for charity. CHARITY RUNNER: Formerprisoner Ray Tindall Campaign groups say encouraging pris­oners to run…