why companies use third party reports to give stats of their DHRP

[roopam_rana]

1-I am reading the DHRP of "Mazagon Dock Shipbuilders where I came across this

I highlighted the text which I am talking about.
Why would a company use third-party reports and claim they are not verified by our company, BRLM, selling shareholders?
shouldn’t the company have knowledge of all this?
2-what does this dot signify

Thank you😊
@ShubhS9