Complex sentence: The water started entering Sonwar Bagh around 04:00 a.m at night because of a breach in Jhelum River bund and it took it just a few hours to make itself to be at a level to completely fill about more than 1 and a half storeys.
Split into simpler sentences: The water started entering Sonwar Bagh around 04:00 am because of a breach in Jhelum River bund. It took it just a few hours to make itself to be at a level to completely fill about more than 1 and a half storeys.