According to my mom, Sorekayi/Lauki/Bottle gourd is some wonder vegetable. She says, and she heard somewhere(Baba Ramdev, I think), that no part of this vegetable should be thrown out. So I use it often... though only in south Indian curries and sambars, which only go well with rice and not necessarily chapathis.
This recipe is more North Indian(like a sabzi) and could be eaten with Chapathis as well. It is very simple tasting, as well as easy to cook. Requires less oil, and tastes great.
Enjoy this healthy sabzi with chapathi/rice.