✦ CS Professional
Pre-Test User ID Generator
Enter your ICSI registration number to instantly generate your TCS iON pre-test login ID.
Pre-Test User ID Generator
Generate your Pre-Test portal login ID from your ICSI registration number.
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Registration number format: 341118555/01/2026 — enter exactly as printed on your registration letter
Your Pre-Test User ID
Open Pre-Test Portal
CS Pre Test Examination — TCS iON portal
🚀 Open Pre-Test Portal
🔑 Forgot Pre-Test password? Reset steps
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1
Generate your User ID above — e.g.
341118555012026@icsi.edu -
2
Open password reset page: g25.tcsion.com/Login/passwordForgot
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3
Enter generated User ID + solve CAPTCHA
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4
Check Gmail for reset link → set new password
Done with Pre-Test? Register for the Exam!
After completing your Pre-Test, come back here to register for the CS Professional main exam — worry-free, with WhatsApp confirmation.
📋 Go to Exam Registration Help