What I would publish first

For a corporate website, I would start with these 8, rather than publishing dozens at once:

1. Borewell Drilling: Methods, Equipment and Best Practices
2. Water Well Drilling: A Complete Guide to Modern Drilling Practices
3. DTH Drilling Technology: Principles, Applications and Advantages
4. DTH Drilling vs Rotary Drilling: Applications, Advantages and Limitations
5. Borewell Drilling Rigs: Types, Applications and Selection Guide
6. Selecting the Right Drilling Method for Ground Conditions
7. Borewell Drilling Project Planning: From Site Assessment to Completion
8. Key Factors to Consider Before Starting a Borewell Project

This gives the website a much more engineering / corporate / industry-expert impression rather than a local contractor blog.

Also, I would avoid titles like “10 Things You Should Know About Borewells”, “How Much Does a Borewell Cost?”, etc. at the beginning. Those can be added later as supporting SEO content, but they shouldn't define the corporate image of the site.