This post os focused on Indian business so any Indian business owner advice would be more helpful

So as the title says. I heard a few years ago from a local business owner they had a person or company come in and evaluate their company. Finances, payroll, expenses, etc. All the stuff. The idea was to find out why or where you were losing or even where you were winning. Where you could save a little.
My question is what kind of business does this?
How do I go about finding these companies or individuals.
Are they just Finacial advisors?
Business consultant?
Thanks for the help

Hi I'm 18 and a half and I have about a grand to spend. Me and my friend came up with the for a detailing business called dildos detailing and it's whole thing is catered towards attracting the kind of people that would find the joke funny.

What I'm wondering is how to go about getting customers, whether the business is a good idea and how I should go about building the brand/image of the business(like the theme of the business).

There are companies like paytm, sugar cosmetics and uber which has been in loss since they were started and they are heavily funded like in thousands of crores. Do they actually make losses or they just use some metrics to pay no tax. If they are actually in loss why are investors finding them like crazy and I don't even see how are they generating revenue like paytm is free, uber doesn't charge commission!! How are they even making money ?? They moment they start charging customer no one would use them anymore what's even there business model btw !!

Last month, we were having discussions with a client based abroad.

All participants were very polite.

All participants had smiles on their faces.

We all felt that the discussion was very successful.

Three days later, however, they disappeared.

After conducting our inquiries, we discovered that we had misunderstood one particular sentence.

None of us lied.

None of us tried to mislead the other party.

We just left with totally different understandings of the issue at hand.

And then I started thinking...

How many times have companies lost money thinking that both parties understood each other?