The names of some of the good IT or Information technology Companies in India as you want to apply for a job in one of the best company only are as follows:

TCS
Infosys
Wipro
HCL Tech
Tech Mahindra
Oracle Fin Serv
Mindtree
Polaris Consult
MphasiS
NIIT Tech
Cyient
Persistent
Rolta
Hexaware Tech
Zensar Tech
Hinduja Global
Tata Elxsi
Mastek
Geometric
Infinite Comp
Sasken Comm
Financial Tech
3i Infotech
AGC Networks
SQS India BFSI
Ramco System
Blue Star Info
Acropetal Tech
Hinduja Venture
ADCC Infocad
Mindteck
ICSA
Saksoft
Dynacons Tech
Healthfore Tech
Aptus Ind
Green Field Agr
Oripro
7Seas Tech
Intellect Desig

Services offered by IT companies in India

Custom Business solutions
Collaborative Content Management
Internet Marketing
Web Branding Services
Database Migration services
Customization Services
Application Development
Outsourcing
ERP solutions
Iphone Apps development
Collaborative Commerce
Programming Services
Quality assurance and testing services
Multimedia offering
Consulting

Other IT Companies in India

Global Software
B-1 Motilal Centre, Nr Sales India,
Ashram Road, Ahmedabad - 380006

Acumen Soft Technologies
BE 379, Salt Lake City, Sector 1
Kolkata 70055

Alliant Technologies Private Limited
Webel HRDC, P-1, Taratalla Road
Kolkata 700088

Emacct Consulting Pvt Ltd
BE 379 Saltlake City, Sector 1
Kolkata 700064

Infoeweb
19/5 Sahapur Colony,
Kolkata - 53 New, Alipore.
Kolkatta 700053

Matrix Solutions Pvt. Ltd.
2 & 11, Poonam Kirti, Poonam Nagar
Off Mahakali Caves Road,
Andheri (East)
Mumbai 400 093

NeoQuant Solutions Pvt. Ltd.
308, Omkar Prarthana, Vijay nagar,
Andheri Sahar Road,
Vile Parle E
Mumbai 400068

Nityo Infotech Services Pvt. Ltd.
101, Janki Centre, Off Veera Desai Road,
Andheri (W),
Mumbai 400 053

Phoenix SoftNet Technologies P. Ltd.
213, reena complex ramdev
nagar vidyavihar west
near BEST bus depot
Mumbai 400071

Access Automation Pvt Ltd
# 101, Annexe Block,
Brigade MM Industrial Enclave,
K.R.Road, 7th Block, Jayanagar
Bangalore 560 082

Adisa Solutions Pvt Ltd
#8, 21st cross, Kaggadasapura
C.V.Ramannagar (post)
Bangalore 560093

Apara Enterprise Solutions pvt Ltd
#139,7th floor,Oxford towers,
Kodi Halli, Airport Road
Bangalore 560008

Bavales Software Solutions Pvt. Ltd.
Nurain point
RT Nagar
Bangalore 560032

Abakus IT Solutions Private Ltd
113 Jaina Towers 2, Janakpuri
Dist Center Janakpuri
New Delhi 110058

AgeSoft Solutions
A-25/ 1 Ganesh Nagar Complex
New Delhi 110092

All India Online Pvt Ltd
43, Community Cent re,
Naraina Industrial Area,
Phase I,
New Delhi 110028

Aster Soft Tech India
363 Surya Apptt sector 6, Dwarka
New Delhi 110075

BE Software Solutions (P) Ltd.
1, Mini Market, Near Nanakpura
Gurudwara, Motibagh
New Delhi 110017

CDW Networks
Sector 2, Noida Barakhamba Road,
Connaught Place
Delhi 110001

Connect Infosoft Technologies Pvt. Ltd.
49-C, 1st Floor, Savitri Nagar
(Pansheel - Malviya Nagar Main Road),
New Delhi 110017