Kankali Tila (Mathura) reveals the early Jain architectural complex and its sculpture program. The findings show a stupa-centered Jain architecture with several important elements:

• Jain stupas (vodva/Deva-Nirmit type) and multiple smaller stupas, known from inscriptions and the layout around the Anda (dome) and its vedika (railings). These are among the earliest Jain stupa forms found in North India.
• Ayagapatras (votive tablets) and other carved architectural slabs that were used around the stupa precincts. These slabs include pillars, cross-bars and door-lintels that decorated the stupa enclosure.
• Pillared pavilions or torana gateways: open-sided pillared spaces that served as entrances and circumambulation precincts around the stupa, sometimes with lotus motifs and stylized capitals.
• Ground railing posts and cross-bars: components that formed the surround (vedika) of the stupa, often richly carved with lions, palmettes and lotus work.
• Jaina iconography and jala-krida spaces: some pavilions are shown with lotus lakes and scenes that indicate ritual promenade and nobility engagement around the water features.
• Temples: evidence points to at least two Jain temples associated with the site (one Digambara and one Śvetāmbara), reflecting the community’s presence and their separate worship spaces.

These architectural pieces belong to the Mathura school of Jain art, dating roughly to the early centuries CE and showing influence from Kushan-era styles (e.g., pillar forms and decorative motifs). The overall layout and surviving fragments indicate a flourishing Jain sacred architecture around Kankali Tila, with emphasis on stupa worship, carved ayagapatās, and pillared gateway pavilions.

If you’d like, I can point to a Jain-specific page that discusses Kankali Tila’s architecture in more detail.