Hey,
Am new to freelancer.com, but I have experience in internet research and data entry.
I have done such lead generation projects for a client based in Mumbai.
The client was a software product company and their sales team required leads for their sales team.
The client required names, telephone numbers and email addresses of schools and universities all over India, and I was part of backend lead generation team.
Unfortunately I do not have any work samples to show you as that data belonged to the client.
But since you require data only for Bangalore city, it's possible in one day.
I can give u names of schools, principals, contact numbers and email addresses.
I can get email addresses of private schools , email addresses of government educational institutions is bit difficult to find on the internet.
If considered for the project I promise I will deliver it on time.
Kind Regards,
Yarzee