Sania, who recently became world number one, is a winner of three mixed doubles Grand Slam titles.
"I love playing tennis. I love practicing and working hard. I love competing. Until I keep enjoying, I keep playing. I want to achieve. Obviously, there is never enough. If Roger Federer can still play today, everybody should play. I want to win some Slams before I retire. We have some big tournaments coming," Sania told reporters.
Replying to a query, she said she would continue to partner with Martina Hingis with whom she had a successful partnership.
She said her decision to get married in 2010 and shifting to doubles are the two most important decisions in her career.
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"In 2010, I thought my career was over. My wrist was bad and I was not even able to comb my hair. At that time, my tennis was out of question. So, one of my decisions was to get married. It took lot of things off me. I was happy in my life.
"Secondly, when I moved to doubles. It was a tough decision for me at that point. Because I had surgeries. So, I was not playing tennis at all or choosing one format. I think I would not have been able to get to the number one in the world if I was still playing singles," she said.
She said she would play in Fed Cup when it is needed and "there was no need now".
Noting that it is a huge coincidence that she and star shuttler Saina Nehwal have achieved the number one ranks in two different sports, she wished Saina best for her future.