Time For India To Test Hydrogen Bomb? Since the 1998 Pokhran-II series, India has maintained a commitment to “credible minimum deterrence” under its no-first-use (NFU) nuclear policy. Time For India To Test Hydrogen Bomb? Since the 1998 Pokhran-II series, India has maintained a commitment to “credible minimum deterrence” under its no-first-use (NFU) nuclear policy.