Airtel has partnered Intex to bring three of the domestic brand's smartphones under its Mera Pehla Smartphone initiative, which offers cashback to sweeten the purchase and lock customers onto the operator's network. Thus far, Airtel has partnered with Karbonn and Celkon , with Intex becoming the third manufacturer to join the telco's initiative. With the announcement on Wednesday, Intex has also launched a new smartphone - Intex Aqua Lions N1 - while bringing its previously launched Intex Aqua S3 and Intex Aqua A4 under the offer's umbrella. Let's start with the offer, before coming to the specifications of the newly launched Intex Aqua Lions N1. As before, Airtel subscribers with an eligible Mera Pehla Smartphone will need to make recharges of any denominations but worth Rs. 3,000 in the first 18 months to receive a cashback of Rs. 500, and recharges worth another Rs. 3,000 in the second 18 month period to claim ...