If you have more time, you can explore other places in Ambala such as the Badshahi Bagh Gurudwara, the Bhawani Amba Temple, and the Ambala Cantonment Railway Station. If you have less time, you can skip visiting the Science Market or the Gurudwara Manji Sahib. Don't forget to carry a sun hat and a bottle of water as it can get quite sunny and warm during the day.