CallKisan

THE CHALLENGE

Indian Farmers Deserve Better

No Centralized Platform

Farmers rely on local mandis with limited reach and unfair pricing.

Middlemen Exploitation

Multiple intermediaries eat into farmer profits.

Trust Issues

No verification system for buyers or sellers.

Communication Gaps

Difficult to negotiate and close deals remotely.

THE SOLUTION

CallKisan: Digital Mandi for Everyone

A location-based marketplace that connects farmers directly with buyers, eliminating middlemen and maximizing profits.

Direct Farmer-to-Buyer Connection

Eliminate middlemen, maximize profits for farmers.

Location-Based Discovery

Find products and services within your area (up to 1000km).

Real-Time Secure Chat

Negotiate, share images/videos, close deals instantly.

Trust Through Ratings

Build reputation with verified reviews and ratings.

Integrated Wallet System

Secure payments, referral bonuses, and lottery participation.

ARTIFICIAL INTELLIGENCE

AI-Powered Content Shield

TensorFlow.js machine learning model automatically scans every image and video in real-time, keeping the platform safe without manual moderation delays.

HOW THE AI WORKS

1

Image Upload Detection

User uploads image/video → Backend intercepts before publishing

2

TensorFlow.js Analysis

NSFW model analyzes 5 categories: Drawing, Hentai, Neutral, Porn, Sexy

3

Confidence Scoring

AI returns probability scores (0-1) for each category

4

Auto Decision

Score > threshold? → Block instantly | Safe? → Publish immediately

Real-Time Classification

✓ Neutral (Safe) 94.2%

Drawing 3.1%

Sexy 2.1%

Porn 0.4%

Hentai 0.2%

Content Approved - Publishing...

Why AI Moderation is Essential for Social Platforms

CallKisan is like OLX meets Facebook - users post, share, chat. Without AI, it would be chaos.

Without AI Moderation

• Manual review = hours of delay
• Inappropriate content goes viral
• Platform reputation destroyed
• Legal liability increases
• Users leave for safer apps

With TensorFlow.js AI

• Instant (<100ms) classification
• Bad content blocked before posting
• Family-friendly marketplace
• Zero manual moderation cost
• Scales to millions of posts

Business Impact

• Trust = More users join
• Safe space = Higher engagement
• Clean content = Ad revenue ready
• Compliance = No legal issues
• Scalable = No hiring moderators

OPTIMIZED SOCIAL POSTING

Instagram-Level Posting Experience

Capture

Camera/Gallery up to 10 images

AI Scan

NSFW check in <100ms

AWS Upload

S3 + Lambda processing

Transcode

5 resolutions (240p-1080p)

Go Live

Geo-indexed & searchable

<100ms

AI Classification Speed

5

Content Categories

99.2%

Detection Accuracy

₹0

Manual Moderation Cost

USER JOURNEY

From Download to First Deal

1

Download

Install from Play Store

2

OTP Verify

Quick phone verification

3

Profile Setup

Create your identity

4

Set Location

Enable GPS discovery

5

Start Trading

Browse & post listings

GROWTH ENGINE

Gamification = Zero Marketing Cost

Why spend lakhs on digital ads when your users become your marketing army? CallKisan's gamification engine turns every user into a brand ambassador.

The Viral Growth Loop

User Joins

Downloads app via referral link

Both Earn

Referrer + new user get bonus

Play & Win

Spin wheel, lottery draws

Share More

Invite friends to earn more

Repeat ∞

Traditional Digital Marketing

₹50-200 per app install (Google/Facebook Ads)
70% users uninstall within 3 days
No organic growth after ad budget ends
₹10-50 Lakhs for 10,000 real users

Cost: ₹500-2000 per active user

Gamification + Referral Model

₹10-20 referral bonus (goes to users, not ads)
Referred users 4x more likely to stay
Exponential growth - each user brings 2-3 more
Trust factor - friends recommend to friends

Cost: ₹20-50 per active user

Spin & Win Wheel

Daily spin rewards keep users coming back. Winners share their joy, attracting more users organically.

Daily Engagement Viral Sharing

Referral Rewards

Both referrer and referee earn wallet bonuses. Firebase deep links track every referral accurately.

Win-Win Model Tracked Rewards

Geo-Fenced Lottery

Local businesses sponsor draws for their area. Users participate, sponsors get visibility - everyone wins!

Local Sponsors Area Targeting

The Numbers Don't Lie

90%

Lower Customer Acquisition Cost

4x

Higher Retention Rate

3+

Referrals per Active User

₹0

Google/Facebook Ad Spend

PRECISION ENGINEERED

Features Built for Excellence

Like a premium automobile, every feature is meticulously crafted for performance and reliability.

MARKETPLACE ENGINE

Intelligent Listing System

Post products with rich media support - images, videos, detailed descriptions. AI automatically scans for inappropriate content, ensuring a safe marketplace for all users.

Multi-Image Upload

Up to 10 photos per listing

Video Support

5 resolution outputs

AI Moderation

TensorFlow NSFW detection

REAL-TIME COMMUNICATION

WebSocket-Powered Chat

Instant messaging with Socket.io delivers messages in milliseconds. Share text, images, videos, and even forward product listings directly in conversations.

Instant Delivery

WebSocket real-time sync

Encrypted Messages

Secure chat with encryption key

Share Products

Forward listings in chat

FINANCIAL ECOSYSTEM

Integrated Wallet System

Complete financial management with Razorpay and BulkPE integration. Add money, withdraw to bank, earn referral bonuses, and participate in lottery draws.

Add Money

Razorpay

Withdraw

BulkPE Payout

Referral Bonus

Earn rewards

Lottery

Win prizes

MULTI-ROLE PLATFORM

Three User Experiences

Regular User

Individual farmers and buyers

Browse & search listings
Create posts (buy/sell/barter)
Chat with other users
Rate & review transactions
Wallet & lottery participation

Business Account

Traders, wholesalers, retailers

All regular user features
Business profile & branding
List 6 products/services
Enhanced visibility
Business ratings separate

Admin Panel

Platform management team

User management
Content moderation
Category management
Draw/lottery management
Financial oversight

GAMIFICATION

Spin & Win Lottery System

Engage users with exciting lottery draws. Sponsors can create branded draws with geographic targeting, ticket-based participation, and automated winner selection.

Geo-Fenced Draws

Polygon-based targeting

Ticket Purchase

Wallet integration

Sponsor Branding

Logo, name, website

VIRAL GROWTH

Referral & Rewards Program

Built-in viral growth mechanism with Firebase deep linking. Users share unique codes, both referrer and referee earn wallet bonuses, driving organic user acquisition.

How it works:

1

Share your unique referral code

2

Friend signs up with your code

3

Both earn wallet bonuses!

SYSTEM ARCHITECTURE

9 Microservices Architecture

Enterprise-grade platform built with scalability, reliability, and performance in mind.

Mobile Backend

100+ API endpoints for user operations, posts, chat, payments.

Admin Backend

Complete admin control panel for moderation and configuration.

Socket Backend

Real-time messaging with Socket.io WebSocket connections.

NSFW Backend

TensorFlow.js AI for automatic content moderation.

Upload Backend

AWS Lambda serverless video processing & transcoding.

Android Apps

Native Kotlin Android applications with Firebase.

Web App

Bootstrap-based responsive web interface.

Admin Portal

Angular 9 admin dashboard with ng-zorro UI.

Data Layer

MongoDB + Elasticsearch with 70+ collections.

TECHNOLOGY

Built with Modern Stack

Node.js

MongoDB

Android

Angular

AWS

Firebase

Elasticsearch

Geo Search

Socket.io

Real-time

Razorpay

Payments

TensorFlow.js

AI/ML

APP GALLERY

Indian Farmers Deserve Better

No Centralized Platform

Middlemen Exploitation

Trust Issues

Communication Gaps

CallKisan: Digital Mandi for Everyone

Direct Farmer-to-Buyer Connection

Location-Based Discovery

Real-Time Secure Chat

Trust Through Ratings

Integrated Wallet System

AI-Powered Content Shield

Image Upload Detection

TensorFlow.js Analysis

Confidence Scoring

Auto Decision

Real-Time Classification

Why AI Moderation is Essential for Social Platforms

Without AI Moderation

With TensorFlow.js AI

Business Impact

Instagram-Level Posting Experience

Capture

AI Scan

AWS Upload

Transcode

Go Live

From Download to First Deal

Download

OTP Verify

Profile Setup

Set Location

Start Trading

Gamification = Zero Marketing Cost

The Viral Growth Loop

User Joins

Both Earn

Play & Win

Share More

Traditional Digital Marketing

Gamification + Referral Model

Spin & Win Wheel

Referral Rewards

Geo-Fenced Lottery

The Numbers Don't Lie

Features Built for Excellence

Intelligent Listing System

Multi-Image Upload

Video Support

AI Moderation

WebSocket-Powered Chat

Instant Delivery

Encrypted Messages

Share Products

Integrated Wallet System

Three User Experiences

Regular User

Business Account

Admin Panel

Spin & Win Lottery System

Referral & Rewards Program

9 Microservices Architecture

Mobile Backend

Admin Backend

Socket Backend

NSFW Backend

Upload Backend

Android Apps

Web App

Admin Portal

Data Layer

Built with Modern Stack

Experience Every Screen

Ready to Build Your Agricultural Platform?