When in Okhla and the surrounding area, you'll want to check out sights like KidZania Delhi NCR or Worlds of Wonder and hop on the metro to see more the city at Okhla Vihar Station or Jamia Millia Islamia Station.
While you're in Sector 18, take in top sights like Worlds of Wonder and jump on the metro at Noida Sector 18 Station to see more of the city.
If you're looking for some top things to see and do in Sector 63 and surrounding area, you can visit Shipra Mall and ISKCON Noida.
Though Sector 62 might not have many top sights, you can venture to the surrounding area to see attractions like Shipra Mall and Yamuna Sports Complex.
While you're in Sector 27, take in top sights like Atta Market and jump on the metro at Noida Sector 18 Station to see more of the city.