“A very limited set of devices had issues with proximity sensor. We have addressed this now and will be providing patches which include the auto calibration of proximity sensor,” company's Rahul Sharma said.

“We also have an updated firmware for the keyboard to improve typing and gestures. Additionally, the entire camera stack has been rebuilt with reworked camera tunings. This will greatly improve the camera to capture more details under various lighting conditions,” he said.

The update provides power improvements and security enhancements for the device. Priced at Rs 8,999, Yureka is turned out to be a hot seller. Yureka is a 4G device, which features Qualcomm Snapdragon 615 octacore processor and 64-bit multi-core CPU coupled with 2GB RAM. It features 5.5-inch HD IPS display with 720x1280 pixels resolution that is protected with Gorilla Glass 3.

The device gets 16GB ROM, 12.5GB memory (for apps and mass storage and expandable up to 32 GB), 13MP camera on the rear and 5MP front camera. To fuel all the operations of the 4G enabled smartphone, the company has packed it with a 2,500 mAh battery for long lasting usage and dual-SIM functionality.

Meanwhile, Yuphoria, priced at Rs 6,999, features a 5-inch IPS display with a layer of Corning Gorilla Glass 3 runs on Android Lollipop-based Cyanogen OS 12.

The device runs on a 64-bit Qualcomm Snapdragon 410 clocked at 1.2GHz coupled with 2GB RAM. Yuphoria has 16GB of internal storage and weighs 143 grams.