New Delhi: Taking the everyone by surprise, a little known Noida-based start-up on Wednesday launched the world's cheapest smartphone at Rs.251 (less than $4) "Made in India" smartphone that - if it works well - will be a game changer.

In what could be termed as a fillip to Prime Minister Narendra Modi's "Make in India" and "Digital India" initiatives, "Freedom 251" from Ringing Bells Pvt Ltd will be available for pre-order on the company website from 6 a.m. on February 18 till 8 p.m. on February 21.