My recommendations would be:
2. Karol Bagh, Tank Road
Rajouri Garden, Karol Bagh.
Cp, Palika bazzar, Karol Bagh
South extention , select city walk, Saket
Ambience mall, dlf mall and emporio mall in Vasant Kunj
Central market, lajpat nagar
You should definitely go to chunmun mall , pritampura they have each abd every brands for men with some great collection