During Treta Yug and period of Shri Ram, ‘mantra controlled weapons’ were available, but that technology is very common today. We also do have mention of 'mind control weapon' “MAYA’ used by Ravan. Even on this lot of work is being done by the modern science and we have evidence that mind control weapons were used recently in Iraq by USA. Link: Mind Control Weapons: Artifical Telepathy, Silent Sound Spread Spectrum
And now this world is slowly catching up with the technology available during Shri Ram’s period. But there are areas which would require more research, like type of aero planes, and in perhaps other areas too, including architectural engineering where military engineers constructed Ram-Setu within one day.
Today the world is involved in serious research on mind control weapon, so let us accept and understand that MAYA used by Ravan were mind control weapons.