Welcome to Cotlas
We are renowned and No. 1 IT company in Kolkata, Patna, and Ranchi. Cotlas Web Solution provides all kinds of IT Solutions like portal development, website designing, android app development, graphic designing, search engine optimization, digital marketing
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Website Designing
We design creative, high-quality websites. Our custom-made, lightweight websites will fulfill all your needs.
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Digital Marketing
We optimize your website and improve your rankings in google. Be seen by customers when they are searching for your offerings.
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Software Development
We develop all kinds of software and web applications for any business or organization. Our custom-made software is designed to solve all your business challenges.
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Portal Development
Cotlas website and portal development company based at Kolkata, Patna, and Renchi, We provide all kind of website and portal development like, real estate portal, Job Portal,, CRM Portal, Exam Portal etc
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App Development
We are a professional android mobile app developing company based at Kolkata, Ranchi and Patna. We make professional Native mobile app for your business, which fulfills all of your requirements and expectations.
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Graphic Designing
We are a professional android mobile app developing company based at Kolkata, Ranchi and Patna. We make professional Native mobile app for your business, which fulfills all of your requirements and expectations.
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Blog Designing
We are a professional android mobile app developing company based at Kolkata, Ranchi and Patna. We make professional Native mobile app for your business, which fulfills all of your requirements and expectations.
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Content Writing
We are a professional android mobile app developing company based at Kolkata, Ranchi and Patna. We make professional Native mobile app for your business, which fulfills all of your requirements and expectations.
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Welcome to Cotlas Web and IT Solution Company in East India

Welcome to East India's premier web development company, proudly serving West Bengal, Bihar, and Jharkhand. We offer comprehensive web and IT solutions, including website design, portal development, app development, graphic design, digital marketing, content writing, and more.

Leading Website and Software Development Company in Kolkata Patna Ranchi Siliguri

We provide a comprehensive range of affordable web design and website development services across Kolkata, Patna, and Ranchi. Our approach begins with gathering client input, followed by meticulous planning, and culminates in implementation and thorough testing. In addition to web design and development, we offer software development, web applications, mobile app development, content marketing, graphic design, and portal development. Our focus on creating interactive and engaging user experiences sets our website design services apart.

Our Ratings

Our ratings speak volumes about the quality of our work. Each project we undertake is a testament to our dedication to excellence and ensuring our clients are happy.

Our Services

We offer a comprehensive array of web development services customized to suit your unique needs. Whether you're seeking web development, mobile apps, or custom software solutions, our dedicated team goes above and beyond to understand and fulfill your specific requirements.

Discover the diverse range of clients we have had the privilege to work with, showcasing our commitment to excellence and customer satisfaction across various industries.

At Cotlas Web Solution, our working process ensures each project is executed with precision.

Our web designing process starts with Listening, where we understand client goals and requirements. In the Design phase, we create wireframes and mockups, refining them based on client feedback. During the Development phase, our developers build the website using the latest technologies, ensuring responsiveness and SEO-friendliness. In the Testing phase, we rigorously check for bugs, performance issues, and compatibility across devices and browsers. Finally, we Launch the website after thorough testing and client approval, providing post-launch support and maintenance to ensure continued success. This structured approach ensures a high-quality, user-centric website.

Searching for the top website design and software development company in East India? Look no further!
Cotlas Web solution is a leading industry expert, building trust and goodwill with our clients since 2015, including a 95% repeat customer rate.
We partner with major brands, businesses, and organizations to provide innovative solutions. using cutting-edge technologies like Node.js, React js,  Angular.js, WordPress, PHP and HTML5, we create websites and software that are visually appealing, high-performing, and secure.
Looking to elevate your business with an e-commerce site? Our team delivers custom e-commerce solutions with payment gateway integration.
Cotlas Web Solution offers a comprehensive range of affordable website design and development services in Kolkata, Patna and Ranchi region. In addition, we specialize in mobile app development, logo design, software development, digital marketing, and search engine optimization (SEO).
Our goal is to tailor solutions to your unique needs.
Ready to discuss your project? Contact us at +91 8910222122 or mail at [email protected]

At Cotlas Web Solution, we use the latest tech like Html, Node.js, ReactJS, MongoDB, Mysql, WordPress and PHP. We choose the right tool for the job, depending on what your project needs and how big it is.

Cotlas Web Solution specialize in web design, digital marketing, and app development. Our tailored solutions and commitment to excellence ensure your success.

Proven Results

Benefit from our track record of successful web projects and digital marketing campaigns, driving tangible results for businesses.

Collaboration

Experience seamless communication and collaboration throughout the project, ensuring your vision is brought to life exactly as envisioned.

Scalability

Grow your online presence with scalable solutions that adapt to your evolving needs and business expansion plans.

Hear from our satisfied customers and learn how our services have made a positive impact on their businesses.