April 14: Australian mountaineer, Alliee Pepper, successfully scaled Mt Annapurna-I without the use of supplemental oxygen. However, the officials are yet to verify the information.    
Pepper, 47, conquered the world's 10th highest peak at 12:07 PM on Sunday, according to the Chairman of Seven Summit Treks Company, Mingma Sherpa.    
The company said tour guides Michael Sherpa and Nima Sherpa accompanied the Australian climber.    
Earlier, 17 years old Nepali mountaineer Rinzi Sherpa also scaled the same peak on April 12 without the use of supplemental oxygen.    
Meanwhile, Director of the Department of Tourism, Rakesh Gurung, said they received information on the successful ascent of Annapurna-I by two persons without the use of supplementary oxygen.

"Climbing Mt Annapurna-I is happening in a large number after the success in rope fixing. We have received information about two persons climbing (Mt Annapurna-I) without the use of supplementary oxygen. We are yet to verify this officially," Gurung added.    
Pepper plans to climb the world's 14 peaks above 8000 metres within two years and has successfully climbed three mountains so far including Mt Annapurna-I.    
After her ascent of Mt Annapurna-I, Pepper is all set to scale Mt Kanchanjungha and Mt Makalu.    
She started climbing mountains in 2007 after scaling Mt Choyu then without oxygen from China's Tibet side.    
According to the department, as many as 25 climbers including 11 women and 14 men of three expedition teams have taken permits to climb Mt Annapurna-I in this spring season.  -- RSS