Advertising:-
AdAge India
Afaqs!
Campaign India
Exchange4media
ibanklive.com
Indian Press Clearing
Mediavataar.com (India)
Squared Monitoring
The Drum

Association:-
Advertising Agencies Association of India (AAAI)
Advertising Standard Council of India (ASCI)
Association of National Advertising (ANA)
Bombay Adclub
The Cable & Satellite Broadcasting Association of Asia (CASBAA)
Indian Broadcasting Foundation (IBF)
Indian Newspaper Society (INS)
Indian Society of Advertisers (ISA)
Internet & Mobile Association of India (IAMAI)
Market Research Society of India (MRSI)
Public Relations Consultants Association of India (PRCAI)
Public Relations Society of India (PRSI)
Retailers Association of India (RAI)
Rural Marketing Association of India (RMAI)

Brand:-
Brand Finance (India) Private Limited
Interbrand
Superbrands

Consumer:-
Growth from Knowledge (GFK)
The Indian Direct Selling Association (IDSA)
KANTAR (Target Group Index (TGI), Wallet Monitor, STAR, Kidscan, eMarketPulse, WAM, ICUBETM, ITOPS, etc and more)
National Council for Applied Economic Research (NCAER) - 1956 (India Market Demographics Report)
National Sample Survey Office (NSSO) - 1970 (Household consumer expenditure, Social Consumption)
Nielsen (Retail Audit, Lamp & Fluorescent Tube Audit, Liquor Audit, Pharmaceutical Audit (IMS))

Consultancy:-
Boston Consulting Group (India)
Ernst and Young (India)
Goldman Sachs
KPMG (Peat Marwick International (PMI) and Klynveld Main Goerdeler (KMG))
McKinsey and Company
Nielsen
PricewaterhouseCoopers Pvt. Ltd.
Technopak

Economy and Statistics:-
Asian Development Bank (ADB)
Bombay Stock Exchange
CARE
Census of India - 1872
Central Statistical Office (CSO) (Statistical Year Book)
Confederation of Indian Industry (CII)
Country Profiles by BBC
Data Portal India
District Information
FICCI
ICRA
Incredible India
India.gov.in (National Portal of India)
Indian Brand Equity Foundation (ibef)
Lok Sabha Questions
National Informatics Centre
National Stock Exchange
Ministry of Finance (Economy Survey and Budget)
National Institution for Transforming India (NITI) Ayog (Formerly Planning Commission)
Rajya Sabha Questions
Reserve Bank of India - Data Releases
Reserve Bank of India - Database on Indian Economy
World Bank - Countries and Regions

Communication and Media:-

* General:-
Directorate of Advertising and Visual Publicity
Media Hive
Ministry of Information and Broadcasting

* Press:-
Audit Bureau of Circulations (ABC)
Indian Newspaper Society (INS) Handbook
Media Research Users Council (MRUC) (Indian Readership Survey (IRS))
Online Indian Newspapers
Press Council of India (PCI)
Press Information Bureau (PIB)
Press Trust of India (PTI)
Registrar of Newspapers for India
United News of India (UNI)

* Radio:-
All India Radio
MRUC and Nielsen (Indian Listenership Track)
Prasar Bharati

* Television:-
Broadcast Audience Research Council (BARC)
Doordarshan
Indian Television
Prasar Bharati

* Internet Data:-
ComScore
Google Analytics
Internet Live Stats
Statista

Retailing

Secondary Sources:-
MICA MIMI (MICA Indian Market Intelligence)
MICA MVMI (MICA Village Market Intelligence)
Centre for Monitoring Indian Economy

Indian Periodicals on Integrated Marketing Communications:-

01. The Economic Times
02. The Financial Express
03. Business Standard
04. Business Line
05. Mint
06. Brand Reporter
07. Business India
08. Business Today
09. Business World
10. Cable Quest
11. Consumer Voice
12. Franchising World
13. Images Business of fashion
14. Images Retail
15. Impact
16. Indian Retail Review
17. Media Watch
18. Outdoor Advertising
19. Platform
20. Point of Purchase (P-O-P) Today
21. Retailer
22. Visual Merchandising & Retail Design