EXTENSIVE IDEAS — DIGITAL MARKETING AGENCY · KOLKATA, INDIA

Eleven years. One founder. Five hundred businesses that couldn't afford anyone else.

Extensive Ideas ran from 2009 to March 2020 — a one-person-started agency and academy that grew into a 20-person team, built for small and mid-sized businesses that big agencies overlooked. This page keeps a record of what it built.

FOUNDED APR 2009 CLOSED MAR 2020 KOLKATA, INDIA

The work, in ledger form

11 YEARS OF RECORDS
Businesses served worldwide
500+
Team members built and led
20+
B2B leads generated
12,500+
B2C leads generated
10,000+
Backlinks built for client SEO
8,000+
Videos produced
500+
Images designed
3,000+
Blogs written
1,000+
Quora views earned
2.5M+
YouTube watch minutes earned
1.1M+

A partial client roster

RECOVERED FROM PROJECT ARCHIVES

HEALTH, WELLNESS & REHAB

Merilife
Rise Rehab
Veerangana Rehab

FINANCE, PROPERTY & PROFESSIONAL SERVICES

Propfinpath
Qfinics
Employvision
Digital Agency Network
A legal practice, Singapore

RETAIL, MOBILITY & CONSUMER BRANDS

Dream Electric Bike
Zytara Beverages
MyntraCouponCode
Eminence

LOCAL & INTERNATIONAL SMBs

a1servicekolkata
Ashok Sancheti
DCAO Solutions
Mulhall Repair, Ireland

These are the names that survived on disk. The full list ran past 500 businesses across a decade — most of the record lives only in results delivered, not folders kept.

The wider archive

MORE NAMES FROM THE PROJECT FOLDERS
3passociation.com
9seos.com
69airbag.com
aaapokerz.com
abhireviewz.com
abhizreviews.com
Abundant Art Gallery
addvientoevents.in
Akhand Jyoti Devine Paradise Mission
alifengineering.com
alphabetschool.com
Ambition College
amexkolkata.com
amr-ami
amtechcomputer.com
anjalipandey.com
apperfly.com
Arise Group
astikacreations.com
astrologyideas.com
atinstore.com
ausdhi.com
avijitmanna.com
bathroomfittingsinkolkata.com
bbfmg.com
bespokeacademic.co.uk
bhaggya
bisssecurity.com
blaviationservices.com
bollywoodbest.asia
bondchemindia.com
braindna.in
brandedtemplate
catholidays.com
cctvdealerkolkata.com
centopens.com
chanchalbedcollege.org
chiefcaterer.com
chyavan.com
ci-pc.org
cloudtechsupp.com
clpvashop.com
coachvineet.com
concertinawire.in
concreteprojects.co
corium.co.in
corroprotectenterprise.com
coupontobuy.com
ctex.net.in
dakbaksho
dascokolkata.com
debasischattaraj.com
digidezign.com
digitalseofirm.com
digitaltechtraining.com
ditomart.com
Dolphin Fire Safety
drbraces.in
dreamworkscomputer.com
drhappylife.com
dvplfc.com
eblagtechnology.com
ebooksonread.com
eexamz.com
ekinematics.com
electriciansinkolkata.com
electrocaresales.com
emigrationprojects.com
energymetering.in
exceltechknowledges.com
fastad.in
Free Ad World India
galaxyitlondon.com
gauriinternational.com
gbsenterprises.in
geminiwear.com
Gift Cake
gipm.in
gkinsulationcontractor.com
globalcastings.in
globalenterprisein.com
globalpackerandmover.com
Globsyn
go4seohost.com
gopigopal.com
goramovie.in
greenfuturetrust.com
greenraise.org
haquelogisticspvtltd.com
harshavardhansancheti.com
hightemperaturefurnace.in
howrahhaatinternational.com
icmamonitor.com
ii-sas
iitnetsolutions.com
imiglifesolutions.com
Indian Silk House
indianjutebag.com
industryboss.com
Infra Web Marketing
inideas.co.in
inovashops.com
insdbbsr
Instanet
intellectsecurity.com
isdrd.org
itechsolution.co
itemsbazar.com
itopinterior.com
itxpart.com
ixoraflower.com
janusartgallery
jax4pain.com
jkgenerator.in
jumetallix.com
jyvegeomatics.in
kabragroup.com
kasturieducation.com
klicktoshop.com
kraftindi.com
Le New Kashmir
lehairport.com
lunatyres
maacoolingtowers.com
fashionethika.com
mahareiki.com
Malegaon Ka Gadbad Ghotala
massa
maxket.org
medicaltoursoindia.com
mercantileaqa.com
mercuryyt.com
mesekanubhav.org
Mettle Tech
Microinfosoft
mistimachine.com
Mohun Bagan Gorbo
moneynivesh.in
Moozoo International
musicprasun.com
mydnaband.com
myhometech
natarajorchestra.com
nationalpipes.in
ndews.org
ngoslalmonirhat.org.bd
no1bondbackcleaning.com.au
nshussain.com
onlinesellingguru.com.au
opgroup.in
opgtravel.in
orisoned.com
paisafilms.co.cc
pastamachinemanufacturer.com
Patel Packers and Movers
preefresh.com
premiumtech.us
princess-tiana.co
priyankafabricators.com
progressenglishacademy.com
proicttraining.com
pureena.in
pushpal
pvcheatshrink.in
qconcc.com
rajshri.com
ramliladwarka.in
ranjanecexports.com
relaxindia.org
renergysolution
revolvingminds.com
Rising Care
saharaplastic.com
Sakhia
samadexport.com
Samadrita Housing
sanchiyanjkbgold.com
sandpengineering.com
seocompanydhaka.com
seocompanyinkolkata.in
guriphotography.com
serencanvas.com
shreefoundation
silkyrock.com
siscojob.com
smipl
socialflow.in
socialtechhelp.com
Songsbajao.info
sourcebayindia.com
streaminglivesportshd.com
suk2com.com
sumangroups.com
supportof
takemeawaytour.com
techcrak.in
techworldindia
thecttc.org
theglobal.co
themaharajacaterers.in
thetechproindia.com
thevastrafashion.com
tirupatispecial.com
touchtears.com
travelgr8.com
trendindian.com
unicosrubberhose.com
universalgroupbiz.com
vagpe.com
vagya bikash
vaxdpaininjury.com
virtualplacement.in
watertech.in
wbschools.in
webisodeprojects.com
webrialto.com
Wedding Cards — Rohit Srimal
weighbridgesolutions.com
wellmanmccorpn.com
winningimmigration.com
worldpokerpros.com
affiliate-lifestyle.com
gazzatech.com
indiadigitalmarketing.in
ingeniostudios.com
trailerrentalservice.com
tsm13.com
www360.in
zzenitheducation.com

Pulled straight from eleven years of project folders — SEO clients, training partners, one-off gigs and everything in between. Not every one of these was a long engagement, but each was a business that got helped.

What the work was made of

CORE PRACTICE AREAS

Search Engine Optimization

On-page, technical and backlink work that took client sites to top Google rankings across thousands of keywords.

Paid Advertising

Google Ads and Meta Ads campaigns, run and measured through Google Analytics for a clear, defensible ROI.

Content Production

500+ videos, 3,000+ images and 1,000+ blogs — enough volume that clients could show up everywhere, not just rank.

Social Media Marketing

Organic and paid programs across every major platform, built around engagement and conversion, not vanity metrics.

Branding & Web Optimization

Positioning, design direction and conversion-focused website work for SMBs going digital for the first time.

Lead Generation

The engine behind 12,500+ B2B and 10,000+ B2C leads — campaigns built to fill a pipeline, not just a report.

Three campaigns worth remembering

SELECTED WORK

Sunanda's Kitchen

1M+ watch minutes · 3 months

Brought on to grow a home-cooking YouTube channel. In three months, the channel passed one million minutes of watch time and made the turn from hobby channel to recognized food brand.

Hairstyle Changer App

1M+ downloads

Ran marketing for a virtual hairstyle and makeover app across Android and iOS, competing for attention against far bigger app-store budgets. Search and social distribution carried it past a million downloads.

Colours of Innocence

1M+ views · 36 hours

Handled the digital push for a Bengali film — Sahoj Pather Gappo — that went on to win national and international awards. The campaign delivered one million video views in 36 hours, carrying the film to an audience its own budget couldn't have reached alone.

Extensive Ideas Academy

TRAINING ARM, 2012–2020
~95,000
students taught across in-person training and online courses (Udemy + Alison)
350+
students trained in person, 4,000+ classroom hours delivered
76,913 / 17,695
students on Udemy and Alison respectively, rated 4.3★ and 4.5★

Courses taught:

Complete SEO Training for Top Ranking — Udemy

Keyword research through technical SEO and link-building, for beginners and advanced learners alike.

Best Small Business Marketing — Udemy

Cost-effective strategies for SMB owners: social, content, email marketing and paid advertising.

Essentials of Digital Marketing & Lead Generation — Alison

CPD-accredited course covering SEO, social, email automation, paid advertising and analytics.

Guest faculty invitations, delivered alongside running the agency:

  • Indian Institute of Management, Calcutta — social media marketing, MDP program
  • Indian Institute of Technology, Kharagpur — 3-day digital marketing course
  • Coimbatore Institute of Technology — digital marketing with data analysis, MSc Data Science
  • Army Institute of Management, Kolkata — digital strategy for management students
  • IAE Montpellier, France — SEO strategy mentorship for MBA interns

A short timeline

2009 — 2020
APR 2009

Founded, alone

Started Extensive Ideas to offer SMBs the kind of SEO, PPC and content marketing usually reserved for clients with agency-sized budgets.

2012

The Academy opens

Began training students and professionals in digital marketing, eventually running 4,000+ hours of classroom sessions across 350+ students.

MAR–AUG 2014

Mentoring from Kolkata to Montpellier

Guided MBA interns from IAE Montpellier, University of Montpellier, through a three-month SEO strategy and web marketing placement.

JAN 2015

Marketing an app past a million downloads

Took on marketing for a virtual hairstyle app across Android and iOS, ultimately carrying it past 1 million downloads over two years.

NOV 2015

Three days at IIT Kharagpur

Delivered a three-day digital marketing course — fundamentals, advanced techniques, then data-driven metrics — to students at IIT Kharagpur.

JAN 2016

A cooking channel becomes a brand

In three months, grew Sunanda's Kitchen past 1 million minutes of watch time and helped it convert into a recognized food brand.

SEP–OCT 2016

A million views in 36 hours

Ran the digital push for Colours of Innocence (Sahoj Pather Gappo), a film that would go on to win national and international awards.

APR 2018

Army Institute of Management

Guest faculty session on digital strategy, social media marketing and lead generation for management students in Kolkata.

AUG 2018

IIM Calcutta & Coimbatore Institute of Technology

Taught social media marketing at IIM Calcutta's MDP program, then led a week-long digital marketing and data analysis course for MSc Data Science students at CIT.

MAY 2019

Teaching at scale

Launched courses on Udemy and Alison; nearly 95,000 students would go through them by the following year.

MAR 2020

Closed the doors

Wound down Extensive Ideas after eleven years, and moved on. The clients, the students, and the record above stayed behind.