As of first weekend Gabbar Singh is standing as the 2nd highest grosser in US. We have to wait and see wheter it will cross Dookudu or not in long run.
Here are the reported grosses day wise:
May 10th THU Premiere $162,000 (In Premeire collections this is in number one position and higher than Dookudu)
May 11th FRI $212,000
May 12th SAT $274,000
May 13th SUN $136,000
Total Reported Gross: $784,000
It may cross $1M by end of first week or begineing of next week. Stay tuned for other reported gross collections!