Noida Ext property ke extra costs, kaise plan karoon?

Kitna extra budget rakhna padta hai property price ke upar Noida Ext mein? I'm looking at Yamuna Expressway Sector-22D, Vcube Promoters ke projects. Log bolte hain bahut hidden costs hote hain. Stamp duty, registration ke alawa interiors, utility connections... kitna add karoon? First-time buyer hoon, thoda nervous bhi. Kya ye sab negotiation mein cover ho sakta hai ya alag se manage karna padega?