I'm assuming you're referring to the "Bettani Series" by Asma Khan, a popular Pakistani romance novel series. The series includes several books, and you're likely looking for a PDF version of the books.
Here's a brief report:
The Bettani Series is a collection of romance novels written by Asma Khan, a well-known Pakistani author. The series follows the lives of the Bettani family, exploring themes of love, family, relationships, and social issues. bettani series book pdf