It seems there might be some confusion regarding "Shalu" as a specific location for housing market analysis. The search results provide information about:

• "Shalu's Residence" in Kathmandu, Nepal: This appears to be a specific accommodation listed on Booking.com, not a general housing market.

   

• "Shalu Apartment" in Ghaziabad, India: This is a residential project, and the search results provide some price ranges and details for this specific development.

   

• Shalu District, Taichung City, Taiwan: There are real estate listings available here, and general Taiwan housing market trends are discussed.

• Shalu Properties in Udaipur-Rajasthan, India: This is a property consulting and real estate services company, not a housing market itself.

Given the different locations, it's crucial to clarify which "Shalu" you are referring to.

However, if you are referring to Shalu District, Taichung City, Taiwan, the general trend in Taiwan's housing market has been gaining momentum.

While an NBI Clearance is a "crucial document" in the Philippines and is routinely required for various "official transactions such as property dealings," it is not typically listed as a direct requirement for the buyer when purchasing real estate.