For me the best solution for losing a bit of weight will always be sprinting. Sadly, over here in Dhaka there's not much room to go sprinting. And chances are that people might end up thinking I'm a thief for running that fast. Sprinting away for my life after snatching someone else's belongings haha.
Other than sprinting, I'd say HIIT cardio is also quite effective when it comes to losing a bit of weight. It doesn't take much room, you can also be done with the whole session within 30 minutes or so. I'd suggest you look into HIIT cardio.
The rest is simple I guess, almost a no brainer. Diet is surely key and number one on the list. Being on a caloric deficit is a must, adding some proper cardio to that will boost up the whole weight loss process for sure.