This document contains key identification numbers for Choudhury Multispecialty Engineers Private Limited as of December 1, 2012. It lists the company's TAN, PAN, Service Tax Registration Number, DIN numbers, Provident Fund code, ESI codes, ST codes, Central Excise and Customs codes, Tax Identification Numbers, and Tax Payer Identification Numbers. In total, it provides 17 different identification codes for the company for tax and regulatory compliance purposes.