To get admission to the undergraduate architecture program at the National Institute of Technology (NIT) Trichy through JEE Main Paper 2, you need to score a rank within the cutoff range set by the institute.

The cutoff rank for admission to NIT Trichy through JEE Main Paper 2 varies each year and depends on various factors, such as the number of applicants, the difficulty level of the exam, and the availability of seats in the architecture program. However, based on the previous year's cutoff trends, you need to score a JEE Main Paper 2 rank within the top 4,000-5,000 to have a good chance of getting admission to the architecture program at NIT Trichy.

It's important to note that meeting the cutoff rank is only one of the eligibility criteria for admission to NIT Trichy. The institute considers other factors such as the candidate's academic performance, the number of applicants for a program, and the reservation policies, among others, for final admission decisions.