The country is set to makes its long-awaited F1 debut when practice begins on Friday although Ecclestone admitted that he did have some concerns about whether the Buddh International Circuit would be ready.
"I was pessimistic a fortnight ago. I was sent pictures of the track and I thought: 'Christ, we're not going to get it finished in time'," he told the Guardian.
"But what they have done in the meantime - and I've been sent more recent pictures - is incredible. The people there are very anxious to be sure they're doing a good job and they are very passionate about their sport."
Indian Grand Prix
Chandhok: India success boost for F1
02/11/2011 AT 10:36
It would be little short of a miracle if Narain Karthikeyan, the only Indian on the starting grid, scores a point with struggling Hispania but there is plenty of pride nonetheless at the new Buddh International Circuit.
Built as scheduled at a cost of some $400m (£250m), the track promises to change perceptions about the capabilities of Indian sport after the chaotic preparations for last year's corruption-hit Commonwealth Games in the capital.
"This weekend is a very significant moment and I'm extremely proud," said liquor and aviation tycoon Vijay Mallya, the principal of the Force India team.
British-based Force India have taken out full-page advertisements in local media and set up a website calling on fans to 'Raise the Flag' under the slogan 'One nation. One soul. One Indian Team'.
Indian cricket great Sachin Tendulkar is set to wave the chequered flag on the race while Bollywood's leading lights are sure to be jostling for a share of the limelight before the start.
There will inevitably be teething problems, and critics also question the staging of such an elite and costly event in a country that combines a booming economy with grinding poverty and severe malnutrition.
On the track, the main battle will be between Red Bull, McLaren and Ferrari with the leading drivers focusing purely on winning now that both championships are over.
With both Formula One championships already wrapped up by Sebastian Vettel and his Red Bull team, the German will be gunning for his 11th victory of a season in which he could still equal compatriot Michael Schumacher's 2004 record with Ferrari of 13 in a single year.
Like his rivals, the 24-year-old has been busy learning the layout of the new track.
"By the time we race in India, I'll have done several laps of the track on the simulator," he said.
"We're expecting the track to have the second highest average speed of the season after Monza. That means that we'll be completing a lap at an average speed of 235kph, so there should be plenty of good opportunities to overtake."
McLaren's Lewis Hamilton, who ended Red Bull's run of 16 successive pole positions at the last race in Korea, is also looking forward to the weekend after doing a demonstration in Bangalore last month.
"I think we're set to be competitive at all of the final three races," said the 2008 champion. "We were quick at Singapore, Japan and Korea, and I think the pattern at the front has sort of settled down now as we reach the end of the season.
"I think we have a car that can be quick anywhere, so I'd like to think we'd be in the hunt again next weekend."
Indian Grand Prix
FIA confirms double DRS for India
26/10/2011 AT 14:11
Indian Grand Prix
Force India ready for 'biggest' race
26/10/2011 AT 09:41