Spice QT-44 Mobile features:

Dual Sim (GSM+GSM)
Dual LED Flash Light
Supports 2 Micro SD cards
Long Battery Life
QWERTY Keypad

Spice QT-44 QWERTY Dual Sim Mobile Specs:

GSM 900/1800 MHz
2.2″ inch (220×176 pixels) 262k TFT Display
Expandable Memory up to 4GB
FM Recording
MP3/WAV/MIDI Ringtones
Phonebook Memory: 800
SMS Capacity: 500
1000 mAh Battery
[...]

Spice QT-66 Mobile features:

Dual Sim (GSM+GSM)
QWERTY KeyPad
PreLoaded Nimbuzz and Ibibo Soical Applications
2 Memory Card slot
Wi-Fi

Spice QT-66 Dual Sim Phone Specification:

GSM 900/1800 MHz
GPRS/WAP 2.0
2.4″ inch (320×240 pixels) TFT Screen
2 MP Camera with Digital Zoom
87 MB Internal Memory
Twin Micro sd card slot
FM Recording
Bluetooth v1.2
[...]

Spice M-6000 Phone features:

Dual Sim (GSM+GSM)
2MP Camera
Fold Metallic Design and Finish
Stereo Bluetooth
FM Recording

Spice M-6000 Dual Sim Mobile Technical Specification:

GSM 900/1800MHz
GPRS/WAP 2.0
2.4″ inch 65k TFT Display
2 Megapixel Camera with Video Recording
Expandable Memory up to 4GB
FM Radio with Recording
Bluetooth+A2DP
64 Polyphonic MP3/WAV/MIDI Ringtones
Java [...]

Spice G-6500 Phone features:

3G Connectivity
VGA Front camera for video calling
One Touch Multimedia
Bluetooth

Spice G-6500 3G Mobile Technical Specification:

GSM 900/1800/1900
UMTS 2100MHz
2.2″ inch (240×320 pixels) TFT Display
1..3 Megapixel Camera
32MB Internal Memory
Micro SD card slot up to 4GB
Stereo FM Radio with Recording
Java Enabled
Phone book Capacity: [...]

Spice M-3636 Mobile features:

Music Player
LED Torch
Mobile Tracker
Micro SD Card Slot
FM Radio

Spice M-3636 Mobile Technical Specification:

GSM 900/1800 MHz
1.8″ inch (128 x 160 pixels) 65k CSTN Display
up to 2GB Expandable Memory
FM Recording
SMS/EMS
Phonebook Capacity: 500
16 polyphonic, MP3/MIDI Ringtones
Speakerphone
Incoming Call Guard
1000 mAh Battery
9 [...]

Spice S-1200 Mobile features:

12.2 MP Camera with 3x Optical Zoom
GPRS/EDGE Support for Web Browsing
Stereo Bluetooth
Expandable Memory
TV Out with Cable

Spice S-1200 Mobile Technical Specification:

GSM 900/1800/1900 MHz
2.4″ inch (320×240 pixels) 262k TFT Display
12.2 megapixel Camera with Xenon Flash, Face Detection and Smile Shutter
70MB Internal memory
Scheduled FM Recording
[...]

MTS India launched range of cheap and affordable mobile phones with lifetime validity and all local calls at 0.5Paisa/Second.

MTS Mobile Phone Price in India – MTS CDMA Phone Range
MTS C6300: Rs 899/-
MTS C2807: Rs. 999/-
Colour Display, Speaker Phone & Double Battery
MTS Super Power: Rs. 999/-
1.5″ Color Display, Powerful Battery 1000 mAh, Stylish and Lightweight
MTS Super [...]

Lava KKT 25 Mobile Features:

Dual Sim (GSM+GSM), Dual Stand by
Call Recording
Powerful Twin LED Torch
Dual Stereo Speaker
Mobile Tracker
Motion Sensor games

Lava KKT 25 Dual Sim Mobile Technical Specification:

Dual Band GSM
GPRS/WAP
CDMA 800 MHz
2.2″ inch (176×220 pixels) 65k Color Display
3D User Interface
2 Megapixel Camera
Micro SD card [...]

Lava KKT 30 is unique dual sim mobile which can work in two modes either (GSM+GSM) or (GSM+CDMA).
Lava KKT 30 Mobile Features:

2.4″ Wide Screen
1.3MP Camera
Big Powerful Speaker
Bluetooth
FM Recording

Lava KKT 30 Dual Sim Mobile Technical Specification:

GSM (900/1800 MHz)
CDMA 800 MHz
2.4″ inch 262K QVGA Display
1.3 Megapixel Camera with [...]

Lava ARC 02 is one of the cheapest Dual Sim Mobile with features like

Dual Sim (GSM+GSM)
Wireless FM Radio with Recording
Expandable Memory
Music Player
GPRS/WAP
Powerful Torch

Lava ARC 02 Mobile Specs:

Dual Band GSM
1.5 ” inch (128×128 pixels) 65K Color Display
3D User Interface
Micro SD Card slot up to 2GB
Speaker [...]