Ashokan pillars from Topra and Meerut were brought to Delhi at the time of:
Firoz Tughlaq
The pyramidal structure in three storeys, seen in what is known today as Firozshah Kotla, near Delhi Gate, was built by Firozshah Tughlaq, to instal the Ashokan column, seen on top. There are two Ashoka pillars in Delhi. This stone pillar of Ashoka (273-236 BC) was transported from Topra, in Ambala district (now in Haryana), on Firozshah Tughlaq's orders. The other pillar, brought from Meerut, is seen installed near Bara Hindu Rao Hospital, at the Ridge, near Delhi University. Both these pillars were brought by water in inter-connected connected boats