Nehwal reached the top of the rankings after getting to the final of the Indian Open in the last week of March but will lose the top spot on Thursday.
The rankings will change due to Olympic champion Li Xuerui beating Saina in the semi-final of the Malaysian Super Series Premier event last week.
In a chat with Reuters, Saina said she was proud of what she has achieved despite not being number one in the world rankings come Thursday.
"Number one is number one, however brief or long the duration is," Saina told Reuters.
"The records are indelible. Nobody can change my name there (at the top) for that duration.
"It is one of the best (feeling)," said the 25-year-old.
She believes that if she remains focussed and fit she can reclaim the top spot.
"Many more chances will come where I can show even better results."
Saina acknowledges that China are the sports powerhouses, with a number of world class shuttlers hungry for titles.
"It is very difficult to fight the Chinese players," she said.
"They have four to six world class players. They are well-trained and hungry for opportunities," she added.