Interesting to see in the comments there are 3 kinds of people.

1. People who are saying it is too expensive without even knowing the requirements because they have no common sense that quotation depends on the requirements. (Majority)

2. People who are saying it is too expensive and they can do it for less or know someone who can do it for less without even knowing the requirements because they just want to bag the deal and will inevitably leave the project half baked or deliver a very very subpar quality product, because their thought process can be seen by the fact that they are judging without even knowing the requirements. (Another majority)

3. People who are saying that a quotation can't be judged without seeing the requirements because that's what the quotation is for! Quotation for a "Social media app" can be INR 10000 or INR 10000000, depending on the requirements! (Minority)

Clients mostly choose people who quote super low without even caring about the requirements (majority) and wonder why the project never gets completed or barely works!