<h1>Service Tax Updates: Self-Certified Amendments, Rs. 50K Adjustment Cap, Revised Returns, New Threshold, Reverse Charge for Sponsorships.</h1> Effective March 1, 2007, changes in service tax procedures include the removal of the requirement to submit the original registration certificate for amendments, allowing self-certified copies instead. Self-adjustment of excess service tax payments is permitted under specific conditions, with a cap of Rs. 50,000 per month or quarter, and must be reported within 15 days. Revised service tax returns can be filed within 60 days to correct errors. From April 1, 2007, service tax on sponsorship services will follow the reverse charge method only if the recipient is in India. The registration threshold has increased from Rs. 3 lakh to Rs. 7 lakh.