Finding a room for rent in Noida under 5000 is more feasible than under 3000 but still challenging given the average rental rates in the area. Here are some suggestions to explore:

1. **Shared Accommodation**: Look for shared accommodations where you can rent a room within a shared apartment or house. Sharing accommodation with roommates can significantly lower your rental expenses.

2. **Online Rental Platforms**: Check online rental platforms like Magicbricks, NoBroker, and NestAway. You may find listings for rooms available for rent within your budget, especially in shared accommodations.

3. **Local Classifieds**: Browse local classified ads in newspapers or online portals. Sometimes, individuals post ads for rooms available for rent at lower rates than what’s typically listed on rental platforms.

4. **Hostels or PG Accommodations**: Consider staying in hostels or paying guest (PG) accommodations, which often offer rooms at relatively lower rates. However, ensure to check reviews and visit the place before making a decision.

5. **Negotiation**: If you find a place slightly above your budget, try negotiating with the landlord or owner. Sometimes, they might be willing to lower the rent, especially if the room has been vacant for a while.

6. **Expand Your Search**: If you’re flexible with the location, consider expanding your search to areas slightly outside Noida, where rental rates might be more affordable.

7. **Networking**: Spread the word among your acquaintances, colleagues, or friends in Noida. They might know someone who has a spare room available for rent within your budget.

While finding a room for rent in Noida under 5000 might require some effort and flexibility, it’s certainly possible with diligent searching and networking.