Est. 1961

One School.
One Brotherhood.
A Lifetime of Bonds.

Celebrating the timeless legacy of Government Laboratory High School, Dhaka — uniting generations since 1961.

Reconnect with Fellow Laboratorians

Find batchmates, revive memories, and build meaningful connections across countries, careers, and generations.

“আলো আরও আলো” — Light, Ever More Light

Carrying our school’s spirit forward through knowledge, integrity, service, and lifelong friendship.

One School. One Brotherhood. Global Impact.

From classrooms to boardrooms, OLsA empowers alumni to collaborate, mentor, and uplift the community.

Honoring the Past, Inspiring the Future

Through events, mentorship, and shared purpose, OLsA shapes a stronger tomorrow for every Laboratorian.

Upcoming Events ↗ Join OLsA →
↓
65
Years of Legacy
1,000+
Active Members
15+
Countries
7,500+
Listed Alumni
Find Your Batchmates

Still looking for your old batchmates?

Over 7,808 Laboratorians are listed in our alumni directory. Search by batch year and reconnect with the people who shared your corridors.

⌕
Already a member? Log in → New here? Join OLsA →
AH
Batch '92
Log in to connect →
RB
Batch '03
Log in to connect →
RB
Batch '06
Log in to connect →
Activities

What's Happening

Events
No upcoming events New events will be announced soon.
View all events →
Notice Board
No notices right now Check back soon.
View all notices →
Poll Board
No active polls right now New polls open periodically.
View all polls →
View all activities →
From the Community

Stories, Insights & News

Platform Updates
Platform Updates Apr 09, 2026 ·965 views

Everything OLsA Can Do: A Complete Feature Guide for Members and Administrators

A complete, up-to-date guide to every feature available in the OLsA platform — for public visitors, members, administrators, and system operators.

AAdmin
Read More →
Platform Updates
Platform Updates Apr 03, 2026 ·632 views

OLsA Membership and Approval Lifecycle Flow

A process-oriented walkthrough of the membership, approval, activation, and reinstatement lifecycle used by the OLsA platform.

AAdmin
Read More →
Read all articles →
Watch on YouTube
07:48
RollCall | Laser Show
93 views
04:39
RollCall Concert | Warfaze | Eleventh Part
430 views
Visit our YouTube channel →
Active Fundraiser
olsa.net
purchase olsa.net
BDT 109.99 raised of BDT 300,000 goal 0.04% funded
Donate Now ↗
Your Legacy Awaits

65 Years of Bonds.Join the Legacy.

01
Register
Create your alumni profile in minutes
02
Verify
Confirm your batch year and identity
03
Connect
Find batchmates, join events, give back
Become a Member Today ↗