Boeing 747, Air India flt 855, 1 Jan 78. Departed Bombay on a moonless night out over the Arabian Sea. 213 pax, 18K-hour captain. A mile offshore climbing through 1200' MSL and rolled almost inverted and hit the water 35 deg nosedown at 380 mph. Captain's ADI failed but he ignored the standby and the 1st officer's ADI. 1st officer pretty much just sat there in disbelief, apparently.