Krishna Khandelwal has more than 25 years of experience in manufacturing. He began his career in December 2000 as a trainee engineer at SFO Technologies in Bengaluru. Over the next 15 years he worked in various roles across the company’s divisions and rose to General Manager.
In December 2015, he joined ZEISS Industrial Quality Solutions, where he heads factory operations in India, overseeing the assembly of coordinate measuring machines (CMMs) and other metrology equipment.
His expertise includes leading cross-functional teams, managing cross-border assembly and production project transfers, part localisation and building global supply chains. His work centres on cost reduction, productivity improvement and customer satisfaction, backed by experience in safety, compliance and industry certifications such as ISO and Lean. He also works on building highly digital manufacturing and assembly workflows.
In an interaction with M R Yuvatha, Editor, Asia Education Review, Krishna Khandelwal shares insights on why hands-on learning matters in modern engineering education.
Engineering has always been about solving real-world problems. Whether designing a machine, developing a product, improving a manufacturing process or creating a digital solution, engineers are expected to turn ideas into practical outcomes. What counts in the end is not only what an engineer knows, but what he or she can make work. Engineering education must therefore prepare students not only with theoretical knowledge but also with the ability to apply it in real situations.
That need is growing. Automation, artificial intelligence, robotics, digital manufacturing and advanced engineering systems are changing how industries operate. Students entering the workforce will have to work with these technologies while also dealing with practical challenges such as quality, cost, safety, efficiency and sustainability. Classroom knowledge alone will not be enough to meet them.
Engineering students spend years learning mathematical concepts, scientific principles and technical theories, which form the foundation of their careers. But knowing a concept and applying it are two different things. Hands-on learning bridges this gap by giving students the opportunity to use what they learn in the classroom.
Understanding how a circuit works through diagrams and equations is different from building one, testing it and finding out why it does not work as expected. Similarly, studying manufacturing processes in a classroom cannot offer the same understanding as seeing a production line, observing quality checks or learning how a small process change can influence the final product.
Practical experience lets students see the connection between concepts and outcomes. When they build a prototype, conduct an experiment or work on an industry project, they begin to understand why a principle matters and how it can be used. A concept that has been put to work is understood more deeply than one that has only been memorised. This makes learning more meaningful and helps students retain knowledge for longer.
Experimentation is one of the most valuable aspects of practical learning. In a classroom, students are often given problems with clearly defined inputs and expected answers. Real engineering problems are rarely so straightforward. They may have several possible solutions, with limitations related to cost, available materials, production capacity, safety or time. Sometimes a solution that looks ideal on paper does not work when tested in practice.
Hands-on projects let students explore these situations themselves. They can try an approach, observe the result, identify what needs to change and improve their solution. Engineering is often an iterative process, and students who experience this during their education are better prepared for changing requirements and unexpected challenges at work. They learn early that the first answer is seldom the final one.
Practical learning also teaches that failure is not necessarily a negative outcome. A student may design something that does not work on the first attempt. A prototype may fail a test, or an experiment may produce an unexpected result. These situations become valuable learning opportunities when students are encouraged to understand the reason behind the failure.
In professional engineering, identifying the cause of a problem is often as important as finding the final solution. Engineers investigate, test possibilities, make corrections and try again. Hands-on learning lets students experience this cycle in an environment where they can learn from their mistakes. It teaches them to treat an unsuccessful outcome as information that can improve the next attempt.
This mindset is particularly valuable in industries where continuous improvement is part of everyday work. A student who has learned not to fear failure, but to study it, carries a habit that serves well in any workplace. Education should make room for this habit rather than reward only the correct answer on the first attempt.
At its core, engineering is about solving problems, and hands-on learning helps students develop this ability in a realistic way. On a practical project, they must decide how to approach the problem, identify the resources they need, test different possibilities and evaluate the results. They may also have to change their original plan when a new challenge emerges.
This encourages critical thinking.
“Engineers, instead of simply asking, ‘What is the correct answer?’, they begin to ask, ‘What is the most suitable solution for this situation?’ It is a significant shift in thinking, and one that defines a capable engineer”.
In the workplace, an engineer may have to balance technical performance with cost, production requirements, quality standards and customer expectations. There may not be one perfect solution, so the engineer must understand the situation and make an informed decision. Students who practise this kind of judgement during their education are better prepared when the decisions become real.
Hands-on learning is also strongly connected to employability. Employers increasingly look for graduates who can combine technical knowledge with practical understanding, communication and teamwork. Internships, laboratory projects, industry visits, apprenticeships, workshops and industry-led projects help students understand how engineering functions in a professional environment, how different teams work together and how technical decisions affect other parts of an organisation.
This is particularly true in manufacturing. Designing a product is only one part of the engineering process. Production, quality, procurement, logistics, maintenance, safety and continuous improvement are all connected. A student who has observed these processes develops a more complete understanding of how engineering contributes to business and society.
Industry exposure also helps students understand workplace expectations. They learn the importance of documentation, communication, deadlines, safety and quality alongside technical knowledge. Graduates who have already seen these expectations at close quarters are better placed to contribute from the start.
The nature of engineering work is changing. Automation, robotics, artificial intelligence and digital technologies are becoming increasingly important across industries, and engineers will need to understand not only how these technologies work but also how to apply them effectively.
Hands-on training can play a key role here. Working with robotics kits, automation systems, simulation platforms, digital tools or laboratory equipment lets students become familiar with technology through experience. However, the objective should not simply be to teach students how to use today’s tools. Technology will continue to evolve, and the tools industry uses a few years from now may be very different from those in use today.
The more important goal is to develop engineers who are willing to learn, experiment and adapt. Practical learning builds this mindset because students are encouraged to explore unfamiliar problems and find ways to solve them. Tools will change, but the ability to learn new ones will remain valuable.
Engineering is rarely an individual activity. Large projects require people to work together, and engineers may collaborate with designers, technicians, production teams, quality professionals, suppliers and customers. Hands-on projects give students an early experience of this collaborative environment.
When students work together on a project, they have to divide responsibilities, share ideas, communicate clearly and resolve differences. They also learn that a technically good solution must be practical and clearly communicated. A design may be excellent, but if it cannot be manufactured, maintained or explained effectively, it may not succeed.
Educational institutions and industry both have a role in making hands-on learning more effective. Colleges can provide strong theoretical foundations, while industry can bring practical knowledge and real-world challenges into the learning environment. Neither can do this well alone.
Companies can support student projects, conduct workshops, offer internships, provide mentoring and help institutions understand the skills increasingly required in the workplace. Students, in turn, can bring fresh ideas and new perspectives to industry-led projects. Such collaboration can reduce the gap between what students learn and what they are expected to do after graduation.
A strong connection between academia and industry can also help institutions keep their programmes relevant as technology and workplace requirements change. Students benefit from understanding not only what they are studying but also how their knowledge can contribute to real engineering challenges.
Hands-on learning does not always require a large industrial facility or expensive equipment. Colleges can create practical opportunities through laboratories, maker spaces, innovation centres, robotics clubs, hackathons and student competitions. Even small projects can offer meaningful learning. Students can be asked to improve an existing design, identify an efficiency problem or develop a simple prototype. Where physical equipment is difficult to access, simulations and digital tools can complement practical activities.
Experimentation should be a regular part of education rather than being limited to a final-year project or a short internship. Students should have opportunities throughout their education to build, test, measure, troubleshoot and improve. This makes learning more engaging and gives students a clearer understanding of how engineering principles are applied.
Also Read: The Future of Learning: Building Human-Centered Skills in an AI-Driven
Engineering education should not force a choice between theory and practical learning. Both are necessary. Theory gives students the principles they need to understand engineering, and hands-on learning shows them how those principles work in the real world. When the two come together, students are better equipped to understand problems, develop solutions and adapt to changing requirements.
The future engineer will need more than the ability to remember concepts or perform well in examinations. Engineers will need to think critically, work with people, use technology effectively and continuously improve their solutions. Hands-on learning can help develop these capabilities from an early stage.
Engineering education must evolve alongside engineering itself. As industries become more technology-driven and interconnected, students need opportunities to experience the realities of engineering before they enter the workforce.
This means creating an environment where students can experiment, ask questions, make mistakes, work in teams and learn from the outcomes. It also means strengthening collaboration between educational institutions and industry so that students gain exposure to real-world challenges.
Ultimately, the purpose of engineering education is not simply to produce graduates who know engineering principles, but to prepare people who can use those principles to solve problems that matter. The classroom provides the foundation, and hands-on experience brings that knowledge to life. Together, they can help create engineers who are not only technically capable but also curious, adaptable, confident and ready to build the future.
We use cookies to ensure you get the best experience on our website. Read more...