Build me website and application like phonePe

An application like GPay with below features:
ads of the shop/marketing/medical and all others to display
using QR codes /phone number all banking related stuff.
Android/Mac/Windows compatible.
Phone number registartion
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Expected services for customers:
App's own PayWallet
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Ticket booking all bus/railways/ flights all over
---- Train: search train
Add passangers & IRCTC user id
payment
IRCTC password
Booking
sale and purchase of the shop items
Food Selection/delivery
Services like uber/ola/ commuting
Clinic/shop search and appointment booking
Map Location of the Clinic/shop to be viewed by customer
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Gas/LPG booking
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All Government bill payment
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Recharges / D2h /Insurance
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Direct money transfer
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QR codes and all banking related stuff
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sign up/integration form of Bussinesses collecting thier details
Nature of Business (please select all that apply to your business)
Grocery
Fashion
Food
Healthcare
Gaming
Entertainment
Travel & Commute
Others