The names of some of the short term courses that one can pursue after completing CA as you and your friends wants to take admission in it are as follows:

IFRS - International Financial reporting Standards
CPA - Certified Public Accountant ( USA)
Certification in financial modeling using Excel & VB
Certificate Course on Indirect Taxes
Certificate Course on Enterprise Risk Management
Certificate Course on Concurrent Audit of Banks
Certificate Course on Internal Audit
Certificate Course on Master in Business Finance
Certificate Course on International Taxation
Certificate Course on Forensic Accounting and Fraud Detection
Certificate Course on International Financial Reporting Standards
Certificate Course on Forex and Treasury Management
Certificate Course on Derivatives
Certificate Course on Valuation
Certificate Course on Arbitration