Short answer

• Inside Delhi city (most affordable): Uttam Nagar, Narela, New Ashok Nagar, Govindpuri, Laxmi Nagar and parts of Dwarka (outer sectors). These areas typically offer the lowest per‑sqft rates inside the municipal boundaries. (Housing.com)
• If you’re willing to buy in the Delhi NCR (shorter commute, bigger/new projects for less money): Ghaziabad (Raj Nagar Extension, Crossings Republik), Greater Noida West, Noida Extension, Faridabad and Bhiwadi are the most budget‑friendly large markets. These give newer apartments at lower prices than central Delhi. (shakuntlagroup.in)

Where to look, with why and typical price guidance

• Uttam Nagar (West Delhi) — good metro connectivity, lots of independent flats and low per‑sqft rates; popular with first‑time buyers. Typical rates tend to be among the lowest within Delhi. (Housing.com)
• Narela (North Delhi) — edge‑of‑city, industrial hub; cheap land and apartments but longer commute to central Delhi. Good if budget > commute. (Housing.com)
• New Ashok Nagar / Laxmi Nagar / Govindpuri (East & South‑East Delhi) — affordable pockets with metro access and established local markets; sensible for buyers working in east/Noida corridors. (Ghar.tv)
• Outer Dwarka (outer sectors along Dwarka Expressway) — mix of affordable and mid‑segment; benefits from planned/ongoing infrastructure (Expressway/metro). Can be pricier than the other Delhi pockets but gives newer projects. (shakuntlagroup.in)
• Ghaziabad (Raj Nagar Ext, Crossings Republik) — much cheaper per sq ft than central Delhi, improving connectivity (Delhi‑Meerut Expressway, RRTS/metro links planned) — strong option for budget buyers wanting new projects. (realty360degree.com)
• Greater Noida West / Noida Extension — value for money, many new projects, good for mid‑term appreciation and rental demand. (shakuntlagroup.in)
• Faridabad / Bhiwadi — cheaper alternatives on Haryana/Rajasthan sides of NCR with improving connectivity and new infrastructure projects. (realty360degree.com)

Practical buying tips (do these before you commit)

1. Fix your budget and commute tolerance — inside‑Delhi flats cost more per sqft but shorter commutes. NCR suburbs give area/amenities for less money but longer travel. (See neighbourhood pros above.) (Housing.com)
2. Check title and approvals — demand completion certificate (CC)/occupancy certificate (OC), RERA registration, sanctioned plans, and clear title. Do registry/encumbrance checks. (This is standard legal due diligence; local rates and rules are actively changing.) (timesofindia.indiatimes.com)
3. Watch circle‑rate changes and stamp duty/registration costs — governments in Delhi & UP/NCR update circle rates and those affect total buying cost; recent revisions and proposals have been in the news. Factor possible near‑term increases into your offer. (timesofindia.indiatimes.com)
4. Prefer RERA‑registered projects and credible developers (track record, delivery history). For resale, get an independent property valuation. (9inehouse.com)
5. Visit at different times; check water/electricity, local schools/medical, future infrastructure plans (metro/RRTS/expressways) — these change values and daily life a lot. (shakuntlagroup.in)

If you want a short, personalized plan I can prepare

• a) If you give a target budget (total amount or per‑month EMI), preferred commute time, and whether you must be inside Delhi city limits, I can list 6–8 specific localities/projects that match and estimate likely sizes (1BHK/2BHK) and price ranges.
• b) Or I can show how to run a basic due‑diligence checklist and a negotiating script for offers.

Would you like me to build that shortlist?