Learn properly
Work through each lesson in order. Your progress is saved on the server, the time you put in is checked rather than assumed, and the certificate you finish with carries a signature anyone can verify.
10 courses for “gate”
Beginner · Mathematics
The Year-1 maths every branch shares — limits and series, optimisation, integration, matrices and eigenvalues, taught with the exam shortcuts that save minutes
Beginner · Career
Clear the OA round - the highest-frequency quant and reasoning topics from TCS, Infosys, Wipro and Capgemini, taught with the shortcuts that save minutes
Intermediate · Computer Science
OSI to TCP/IP, subnetting, TCP internals, DNS/HTTP/DHCP, TLS security and modern delivery — exam + interview core
Intermediate · Computer Science
ER models, SQL, normalization, transactions, concurrency control and crash recovery — exam + interview core
Intermediate · Mechanical
Fluid statics, Bernoulli, flow measurement, momentum forces, pipe losses, dimensional analysis and open-channel flow — ME exam + interview core
Beginner · Tools
Navigate the filesystem, filter text like a pro, manage processes and write your first real bash scripts
Intermediate · Computer Science
Processes, scheduling, concurrency, deadlock, memory, paging, virtual memory and file systems — exam + interview core
Intermediate · Electronics
Convolution, Fourier series & transform, sampling theorem, Laplace & Z-transforms, Bode plots and modulation — ECE exam + interview core
Beginner · Databases
Query, join, aggregate, design and tune the database every placement test and production service depends on
Intermediate · Mechanical
Laws, entropy & availability, gas and vapour power cycles, refrigeration, combustion and psychrometrics — ME exam + interview core
Every TieEdu course is a fixed sequence of modules and lessons. Nothing is unlocked out of order, so a lesson you have reached is a lesson whose prerequisites you have already met. Progress is recorded on the server as you read or watch, which is why it survives a cleared browser and a new phone.
Ratings on this page come from learners who finished the course and submitted feedback — an unrated course shows no rating at all rather than a made-up one. Learner counts are enrolment records, not impressions. The same rule governs completion and XP: the server credits time at real-time speed and caps how fast a lesson can be marked done.
All of these courses are free to start. Finishing any of them issues a certificate signed by TieEdu, and its serial can be checked by anyone at tieedu.com/verify without an account.
Use the filters to narrow the list by intermediate, beginner level and by topic — currently free, interview, cse, placement, mech, sql, algebra, aptitude, among others.