Chinese smartphone maker OnePlus has offered a money-back plan on its current model OnePlus One, to shoppers on Inc.'s India website, with only three weeks left for the global launch of its new handset.

Buyers can get 3,500 rupees (about $50) back on their purchases of the OnePlus One, the company said on its official Twitter account for India. This offer is in collaboration with ICICI Bank Ltd., India's largest private-sector bank. 

The offer, on, requires shoppers to use ICICI Bank's online-banking facility to make the purchase, among other conditions, for the 64GB sandstone black version of the One. Without the discount, the phone is retailing at 21,998 rupees.

OnePlus has kept the buzz going ahead of the launch of its new phone, simply called OnePlus 2, with various aspects released piecemeal. Features officially confirmed by the company include the Snapdragon 810 chipset, tweaked to avoid overheating, and the type-C USB cable.

On Tuesday, the company also announced that the new handset will carry 4GB of RAM, which would ensure the smartphone has enough capacity to handle complex tasks without lags or glitches as befitting a premium smartphone.

The launch of the OnePlus 2 is set for July 27 and the smartphone company is giving away Google Cardboard VR headsets for those that don't mind paying for the shipping. Details on this are expected to be released later this month.