Reliance Jio may not have made its debut yet, but it is already making its presence felt. As a part of its 90 day unlimited preview offer, Reliance partnered Samsung to offer a free Jio SIM card with select Samsung Galaxy smartphones. Now, Airtel is following suit with its ‘Super Powerful Offer’, which gives 10GB of 4G data for the price of 1GB data with select Samsung Galaxy J series smartphones.

Airtel’s offer is for prepaid users only, and those buying 1GB of data for Rs 250 will instead get 10GB of data at the same cost. In cities that don’t have 4G, the same offer applies for 3G as well. The smartphones included in this offer include the Galaxy J2, Galaxy J2 (2016), Galaxy J5, Galaxy J5 (2016), Galaxy J7, Galaxy J7 (2016), Galaxy J Max and the Galaxy J2 Pro. If you are an Airtel prepaid user with one of these smartphones, here’s how you can activate the Super Powerful Offer.

You need to visit and follow the on-screen instructions to pay for the recharge and get the benefit. One thing to keep in mind is that the website needs to be visited from the smartphone and with data enabled — it won’t work on Wi-Fi.

Airtel’s Super Powerful Offer is valid till December 31, 2016 and the free data on offer will be valid for only 28 days, PhoneRadar reports. Airtel’s offer is also applicable on users recharging for 2GB, 3GB, 4GB and 5GB of data as well. Airtel’s website also mentions that while this offer is restricted to prepaid users for now, it will soon be made available for postpaid users as well.

This isn’t the first time Airtel is taking measures in anticipation of Reliance Jio‘s launch and the increase in competition it is expected to bring. Last month, the network carrier drastically increased the amount of data being offered to 2G, 3G and 4G prepaid users. In some cases the benefits were close to 67 percent. It also revised rates of its sachet packs offering up to 48 percent benefits. Facing the heat, the likes of Idea Cellular and Vodafone too introduced similar benefits on their existing data plans.

These price cuts by operators can be seen as preemptive measures to Reliance Jio‘s imminent launch in India. We have already reported about Jio’s data plans that were eight times cheaper than what Airtel and Vodafone offered. While there is still no specific date of launch, there’s a lot of buzz, and you feel the launch will happen sooner than later. Jio’s preview offers in the meantime have created a lot of buzz, and the company has managed to garner base of over 1.5 million users.