You can join Territorial army as a Jawan or as an Officer. For joining as a Jawan, you need to be between 18-42 years and should have passed your SSC. Recruitment notification will be released in the newspapers and then based on your Zonal region, you have to reach out to the respective Recruiting office on the designated date as notified in the News Paper. For more information, please visit their pfficial page at: https://www.territorialarmy.in/join-as-jawan.aspx
For joining Territpriap Army as an officer, you can join as a Civilian or as an Ex Servicemen. For that you need to visit the official website: www.joinindianarmy.nic.in. Also check
https://www.territorialarmy.in/civilian.aspx for more information.