"I don't want to name anybody but with the new qualification in place, I see four boxers in Olympics this time. It's become very tough now," Sandhu told PTI on the eve of the South Asian Games' competition here.
So far, none has qualified for the Olympics with world No.2 Shiva Thapa (56kg) coming close to it last year before losing in a box-off in the World Championship.
"Previously one would qualify if you make the quarters in a World Championship. This time even a medallist is not qualified as the world body (AIBA) has trimmed the number of qualifiers," he said referring to Shiva's plight.
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Simplifying the new qualification rules, he said: "Earlier the WSB (World Series of Boxing) and AIBA did not have any quota now they have 63 out of 150."
"It's beyond doubt that we will find it hugely tough as only three (from one zone, Asian/Oceania) can qualify for each weight category," he added.
"I cannot comment on the federation and functioning (of Boxing India). As a coach, my focus is to get maximum qualification from the Olympic qualifying event," he said.
With India fielding a strong 10-member squad for the South Asian Games, he said: "We are very positive of bagging all the 10 gold medals but this sport is very unpredictable. We're keeping our fingers crossed."
"This is one more tournament before the big event and should be a good assessment and exposure for the team," he signed off.