"That's too expensive," Arjun thought. "I'll just find a free PDF online."
Frustrated, Arjun tried another site. This one asked him to "complete a survey" before downloading. He wasted 20 minutes filling fake details. Then it asked for his phone number. Then it wanted him to install a "PDF reader app" — which turned out to be adware that flooded his phone with pop-up ads. download rd sharma class 11 pdf
Worse, his phone started lagging. A week later, he found an unknown ₹2,500 charge on his family's prepaid mobile balance — premium SMS scams from those survey sites. "That's too expensive," Arjun thought