Things they assume

I've noticed that recipe writers assume you know a lot of stuff. Here are a few things I've found.

Pressure Cooker Whistles converted to minutes

As whistles are prone to variation the tip is to find the main ingredient then use your own pressure cooker instructions to determine how long it takes to cook the main ingredient.

Another site says that 1 whistle one whistle in a pressure cooker takes about 3-5 minutes. However, the time can vary depending on factors such as the amount of water and food inside the cooker, as well as the heat level. For instance, if you need 2 whistles in your pressure cooker, it will take around 6-10 minutes (because each whistle will take 3-5 minutes)

If you don't have instructions run this search in Google/Perplexity/Duckduckgo, substituting the ingredients, amounts and pressures you're using in your recipe.

Using a pressure cooker at 60 kpa how many minutes does 1 cup of moong dal take to cook?

Thanks to https://www.hippressurecooking.com/does-your-pressure-cooker-recipe-whistle/ 

Indian (aka Traditional) Pressure Cooker pressure

Cook at 100 kpa or 15 PSI

Lentils: How much water and how long to cook?

I'm sure it depends on your  pressure cooker but here's what I've found for my  non-Indian pressure cooker at 15 psi.

I cup of dry, unsoaked lentils need 3 cups of water and will take about 7 minutes under pressure with 15 minutes release time.

I cup of soaked for 30 minutes lentils need 1.5 cups of water and will take about 5 minutes under pressure with 15 minutes release time.

I've found using them unsoaked and adding them to other curry ingredients ensures everything is well cooked.