What could be embarrassing for Indian athletics, as many as six athletes are on the list of 19. Asian Games medallist M R Poovamma too figures on it.
Both involved steroid offences: considered the most heinous of doping offences and in which anti-doping officials are quite strict about penalties.
Hamza's dope sample collected out-of-competition on January 17 this year has been found to contain Furosemide, a prohibited substance under the World Anti-Doping Agency Code.
Among the five, two were gold medal winners at the Open national athletics championships in Andhra Pradesh last year: Taranjeet Kaur and K Naresh (senior).
The announcement comes following hearings by an IOC commission into allegations of state-sponsored doping by hosts Russia at the 2014 Winter Games.
Russia has been banned from next year's Winter Olympics over state-sponsored doping but the International Olympic Committee said Russian athletes would still be able to compete under a neutral flag.
World Anti-Doping Agency declined to lift its suspension of Moscow's national anti-doping body on Thursday.
FIFA insisted all players including all of the Russian squad underwent pre-competition and post-match tests in Brazil.