How can I choose Pre-engineered buildings manufacturers in India?

I am a small budgeting builder and planning to construct a shopping mall. I have a small budget to construct a small shopping mall. I will complete this construction project in the coming month. I have successfully completed many construction projects, so I have good experience to design the shopping mall beautifully. Now, I want to use PEB sheets for roof space and wall sheeting. I know very well that PEB sheets can be used in the low rising buildings. So I have decided to use PEB sheets in my shopping mall. PEB sheets are very lightweight, long-term, sturdy, stable and safe. Having these qualities, I mostly prefer these sheets for constructing my shopping mall. The pre-engineered buildings are durable, affordable, flexible, and simple to install. These sheets are simple to assemble, weather-resistant, safe and secure, very strong and low on the maintenance. Hence, I don’t have the right knowledge to choose the best . So anyone can recommend the best pre- engineered buildings manufacturer in India.