Keep in mind that your television must be connected to the Internet in order to download apps. This will take you to your TV's home page. Do so by swiping down on your remote's touch surface. Store is the multicolored Google Play Store icon on the far-left side of the "Apps" section. You can swipe right to look through the "Entertainment" tab's apps, or swipe down to select a more specific category, such as TV Remote Games. You can also swipe up to select the magnifying glass icon, then type in a search query. Doing so will take you to the app's page. This option is below the app's name. If the app isn't free, you'll see its price here instead. It's on the right side of the screen. Selecting this will prompt the app to begin downloading to your TV; when it finishes, you can select OPEN to go straight to the app.

TL;DR in Hindi:
आपके टीवी को चालू करें: आपके रिमोट के Home बटन को दबाएँ: नीचे "Apps" भाग तक स्क्रॉल करें: Store को चुनें और फिर आपके रिमोट के टच सर्फेस पर टैप करें: एप्स के लिए ब्राउज करें: आप जिस एप को डाउनलोड करना चाहते हैं, उसे चुनें और रिमोट पर टैप करें: Install को चुनें और रिमोट पर टैप करें: ACCEPT को चुनें: