Zaheer, who has returned from Europe after a rigorous training camp under Tim Exeter, calls the Ranji Trophy as his "next big test."
"My next big test would be the domestic season (Ranji Trophy). I want to get back into the Indian team," Zaheer told "DNA" newspaper on Saturday.
The left-arm fast bowler said the presence of youngsters is not a threat to him in his comeback bid.
"Youngsters doing well is a good sign for Indian cricket. And if the seniors do the same, then you become a champion side. There is no threat. Competition only helps you do your best," he said.
The 34-year-old said his stint in France was good. "It was a good conditioning outing. We (Zaheer and Yuvraj Singh trained together) worked on fitness. I think we went to the right guy. Tim (Exeter) knows what every sportsperson needs in this competitive world. This was the first phase of my conditioning. We will go to South Africa early next month. I plan to work on fielding and bowling there."
Zaheer has played 88 Tests and 200 ODIs. He has taken 295 Test and 282 one-day wickets.