India's Tata Motors gains after JLR says some systems back online post cyber attack

** Tata Motors TAMO.NS climbs 1.9% to 677.1 rupees; top gainer on Nifty auto index .NIFTYAUTO, which is up 0.1%

** Carmaker's luxury unit Jaguar Land Rover (JLR) says some of its digital systems back online after recent cyber attack

** TAMO fell 5.3% in the past two sessions on cyber attack woes

** NIFTYAUTO only index trading in green among 16 major sub-indexes

** Tata Motors rated "hold" on avg; median PT is 720 rupees, per data compiled by LSEG

** YTD, TAMO down ~9%, NIFTYAUTO down ~15%