Therefore, in the absence of "epigraphic and literary" evidence (though one recent web reference mentions 1375 and another 1380) for its provenance, a research study[6] conjectured the year of building by comparing with many other large monuments of this period.

It is dated between 1351 and 1354 when Feroz Shah Tughlaq, during his stay in Jahapanah, ordered this mosque to be built as "his pious inaugural contribution to the Capital".

[5] The four corners of the mosque are adorned with minarets with three protruding gateways, one in the middle of each face, with tapering turrets flanking each gate.

The southern gate, with imposing steps at the main entrance, exhibits a combination of arch and trabeated construction.

The turrets flanking the southern and northern gates are circular in shape; the articulation on these gives them a three storied appearance.

The Delhi chapter of Indian National Trust for Art and Cultural Heritage (INTACH) categorized the monument as "Grade A" in terms of archeological value.

[9] Delhi heritage experts were concerned by the status of the restoration works of the Khirki Mosque done by the ASI, which converted it into a pink monument (pictured) as distinct from the lime mortar of ancient times.

This altered the chemical and physical properties and also made it more expensive exercise (brick dust costs more than sand).The well–established[citation needed] method of preparing a lime–surkhi mortar for conservation of monuments involved initially burning lime in a kiln, then slaking it under water for a month, and thereafter grinding it in a mortar mill in the proportion of 33% lime, 66% sand and other additives.

ASI subsequently decided that in new restoration works, such as the Khirki Mosque, lime will be used in proper quantity.

[10] In 2018, during archaeological works, the ASI uncovered a large number of copper coins on the site of the mosque.

It is a sluice weir with seven arched main spans, with two additional bays at a higher level on the flanks.