Speaking of algorithm competitions, here are a few you should checkout if you are interested.

SRI CHAMPAKADHAMA SWAMY, BANNERGHATTA HILL, BENGALURU (KAR)
#bharatmandir

The shrine is dedicated to Sri Vishnu along with Devi Lakshmi and Bhoodevi.
It is built in an area full of Champaka trees.
As champaka flowers are offered to Sri Vishnu here, it is called Champakadhama.

It is believed that King Janmejaya had sarpa-dosha. To get rid of it, he took bath in the nearby pond. He emerged with a golden body and sarpa-dosha was also removed. The pond is called Swarnamukhi and believed to have curative powers.
Sri Vishnu murti was consecrated by him.

It is also believed that this forest area was the Dandakaranya where Sri Ram stayed in exile.
Some believe that the original shrine was built by Pandavas.
The pushkarni/pond is emptied once a year so that the rock at the bottom (which has image of Anjaneya) may be worshipped.

Strong Monopolies:

IRCTC 100% Market share in Rail Network.

IEX >90% market share in power trading.

Zydus wellness >90% market share in sugar free product.

Eicher motors >85% market share in 250cc bikes category.

MCX >85% market share in commodity trading.

Coal India >80% market share in coal production in India.

ITC >75% market share in cigarettes.

Honda Siel >75% in portable power generators.

Hindustan Zinc >75% market share in primary zinc industry.

Asahi India Glass >70% market share in automotive glass.

NRB Bearings >70% market share in needle roller bearings.

Pidilite >65% market share in adhesives.

CAMS >65% market share in RTA within mutual fund industry.

Time Technoplast >65% market share in polymer based industrial packaging.

Concor >65% market share in domestic container cargo transport.

Exide >60% market share in lead batteries.

Naukri >60% market share in the Indian job market space.

Praj >60% market share in ethanol plant installing.

Indiamart Intermesh >55% market share in the online B2B Classified space.

Borosil Renewables >55% market share in Lab glass.

Vst Tillers >50% market share in
Power tillers.

Delta corp >50% in online poker games.

Vinati Organics >50% market share in IBB.

🛠️ OPEN BUSINESS IDEAS 🛠️

Below a list of business/product ideas I had or read about.

They are worthless if they remain ideas and if you don't overcome the challenges in building them, so feel free to copy / tweak / implement them!
👇

Better: use one and make a MVP during the #24hrstartup challenge!

😻 Product Hunt Time
A clock that displays the time it is @ProductHunt
Also displays what you should do and where you should post, at each specific time during your launch

🚧 IndieCrunch - VC free tech news
Techcrunch but only for bootstrapped companies

🎧 Kickstarter for audiobooks
A lot of awesome books are not available as audio.
Crowdfund the money to buy the audio rights + a voice actor

The best way to know if people like your product is NOT:

- Have a lot of emails in the waiting list
- Become #1 on PH
- Become #1 of HN or Reddit
- Have people that saing "I'll pay"
- Have a lot of free users

The best way to know if they're actually pay for it.

The only thing that matters is your product providing a value, and you can't know this until people will pay money for it.

We can have a first signal of a product/market fit after the launch by check how many sales we've got in the first 24h. Some scale:

200+ This has a high potential.
100+: This has a potential.
50+: Some people need it.
10+: People almost don't need it.
0+: People don't need it.

This is for a single time payment product. For a subscription probably it should be less because people hate subscription.

And obviously, you should have a lot of traffic like 3-5k+.

Here is a stat for my products (macOS apps) for the first 24h after the launch:

Statue of Equality (Ramanuja) Muchintal, Hyderabad, Telangana

The Statue of Equality is a monument in India dedicated to the 11th-century Vaishnavaite Sage Bhagavad Ramanuja, commemorating 1000 years since his birth. It was inaugurated by Prime Minister Narendra Modi ji in 2019.

In 2014, Sri Chinna Jeeyar came up with the idea to commemorate the 1000th anniversary of Sri Ramanuja's teachings by building the Statue of Equality. The statue is constructed on an estimated 34 acres in Hyderabad, India.

It consists of a 216 foot tall statue of Ramanuja and is surrounded by 108 Divyadesams (model temples) and includes an educational gallery. The project budget is 1000 crore rupees.The foundation stone for the Statue of Equality was laid by Chinna Jeeyar.

The statue was built by Aerosun Corporation in China before being shipped to India. It is made of panchaloha, a combination of gold, silver, copper, brass and titanium. The statue relies on donations to fund its construction.

The temple is located on the 27,870 square metre second floor with a 120 kg statue of Ramanuja, representing the years he lived, meant for daily worship. The 1,365 square metre third floor including a Vedic digital library and research center.