The report's findings are expected to feature heavily during the course of UK-India Week, organised by UK-based media house India Inc, which includes a high-profile Leaders' Summit in Buckinghamshire, south-east England.
"It is now up to the British to indicate what they want," he told reporters in The Hague in reaction to Tuesday's vote against Prime Minister Theresa May's Brexit deal. "We have a little bit more time, but it is really going down to the wire."
The debate takes place in the lower house of parliament, the House of Commons. May does not have an outright majority of the 650 lawmakers, and the DUP, the small Northern Irish party that usually props up her government, is opposed to the deal.
Pledging to vote against Prime Minister Theresa May's deal next week, Corbyn said only a Labour government could secure an accord with the European Union that would re-unite Britain, a move that would, he acknowledged, most probably require an extension of the Brexit talks with Brussels.
May has so far refused to retreat from her unpopular deal, which envisages close trading ties with the EU, but without any say on policy as Britain has now, after leaving in March. Instead, she has pressed ahead with a vote she looks set to lose after failing to win over her nominal Northern Irish allies.
May, who leads a minority government dependent on the support of a small Northern Irish party, has ruled out staying in the EU customs union, which groups EU members in a duty-free area where there is a common import tariff for non-EU goods.