Bengaluru: The 39-year-old Tollywood actor Nandamuri Taraka Ratna passed away after a nearly month long hospitalisation due to massive cardiac arrest at Narayana Hrudayalaya Hospital in the city yesterday. Taraka Ratna, who belonged to the third generation of illustrious Nandamuri family, was the grandson of enigma of Telugu filmdom and former Chief Minister late N.T….