List of Sensex Stocks

ACC LTD
AMBUJA CEMENT
BAJAJ AUTO
BHARTI ARTL
BHEL
CIPLA LTD
DLF LTD
GRASIM INDUSTRIES LTD
HDFC BANK
HIND UNILEVER
HINDALCO
HOUSING DEVELOPMENT FINANCE CO
I T C LTD
ICICI BANK
INFOSYS TECHNOLOGIES LTD
LARSEN & TOUBRO LTD
MAHINDRA & MAHINDRA LTD
MARUTISUZUKI
NTPC LTD
ONG CORP LTD
RANBAXY LABORATORIES LTD
REL COM LTD
RELIANCE
RELIANCE ENR
SATYAM COMP
STATE BANK OF INDIA
TATA MOTORS
TATA STL
TCS LTD
WIPRO LTD

SENSEX

Sensex [ Sensitive Index]is an index representation for the bluechip companies on the Bombay Stock Exchange. Sensex index comprises of 30 stocks. Sensex is to BSE as to what Nifty is to NSE. The index is used for various purposes such as index based deriatives, index funds and as a benchmark for the overall market.

List of Nifty 50 stocks

ABB
ACC LIMITED
AMBUJA CEMENTS
BAJAJ AUTO
BHARTI AIRTEL
BHEL
BPCL
CAIRN INDIA
CIPLA
DR.REDDY
GAIL
GRASIM
GSK PHARMA
HCL TECH
HDFC FIN
HDFC BANK
HERO HONDA
HIND UNILEVER
HINDALCO
ICICI BANK
IDEA CELLULAR
INFOSYS
ITC
L&T
M&M
MARUTI SUZUKI
NALCO
NTPC
ONGC
PNB
RANBAXY
REL PETRO
REL
RELIANCE
RELIANCE COMM
SAIL
SATYAM
SBI
SIEMENS
STERLITE IND
SUN PHARMA
SUZLON
TATA MOTORS
TATA POWER
TATA STEEL
TCS
UNITECH
VSNL
WIPRO
ZEE ENT

Nifty

S&P CNX Nifty [ Standard and Poor's CRISIL Index 50 nicknamed Nifty 50 or simply Nifty]
is an index representation for the bluechip companies on the National Stock Exchange of India. Nifty index comprises of 50 stocks accounting for 22 different sectors of the economy. The index is used for various purposes such as index based deriatives, index funds and as a benchmark for the overall market.

So what is the Stock Market all about?

A Stock is a share or a portion of the total ownership of a corporation and the Stock market, it's a place where these shares are brought and sold.
India has several Stock Exchanges; the major ones are Bombay Stock Exchange (BSE) and National Stock Exchange(NSE)