You can also connect to

Logo Linkedin
Linkedin is a social Media website for Professional People.
It does not list Indian phonenumbers like historic Whitepages
but profiles of individual people.

Connected to Linkedin you can send messages
to people from India or other countries.

As of 2020 August 367.600.000 people in India
were connected to Facebook

Linkedin was founded by Reid Hoffman in California in 2002.
2016 Linkedin was acquired by Microsoft.
More on the history of Microsoft
on the Brand Portal