The document discusses reaching people online through digital marketing. It provides an overview of the current state of internet and mobile internet usage in India. Specifically, it notes that internet penetration is growing significantly in tier 2 and 3 towns and mobile internet users are also increasing rapidly. The core online audience in India consists of those from SEC A/B demographic between the ages of 15-34. It then discusses various digital marketing strategies like search marketing, display advertising, video, mobile marketing and ways to collect leads online through paid and unpaid channels. It provides details on specific Google advertising products and how to optimize campaigns.