

Full 1
TSDSI is an autonomous, membership based, standards development organization(SDO) for Telecom/ICT products and services in India.
Full 1
TSDSI is an autonomous, membership based, standards development organization(SDO) for Telecom/ICT products and services in India.
Registration cum invitation letter for Visa Support
TSDSI welcome delegates for the 3GPP CT1 #149, CT3 #135, CT4 #123 and CT6 #119 meetings during May 2024, in Hyderabad.
Please complete the form and submit for necessary processing. All delegates (foreign and Indian nationals) should complete the registration details3GPP RAN WG Meetings in Hyderabad ended on 29 August 2025.
TSDSI-3GPP Meeting Registration & Visa Support Portal
TSDSI welcomes delegates to the 3GPP RAN WG Meetings at Bengaluru, India from Aug 25-29, 2025.
All delegates attending the meetings are requested to complete the below form, regardless of whether or not you require the visa support letter. This will help us better prepare and assist you for the purpose of the meetings.
You can download the meeting invitation letter here and documents for meeting clearance are here.
For any questions on the registration form or visa support letter, please contact: 3GPP_RAN_2025_support@tsdsi.in