Haryana has a historical importance because Panipat, one of the most fierce battles in India, was fought on this very land. There are several historical monuments and grandiose architecture to behold. The religious and seasonal festivals glorify the culture of Haryana. The cities are fast growing and so are the IT sectors, yet the state is still deeply rooted to its quaint traditions and culture.
A major chunk of Haryana can be covered within a week. You can spend a day or two in Gurugram exploring the historical places, lakes and markets. From here you can spend a day in Rohtak or Panipat on your way to Panchkula. Rohtak and Panipat each have exquisite sites and bountiful nature to help you relax. You can spend a day or two in Morni Hills enjoying the vistas from its vantage points. Chandigarh is hardly 20 minutes away from Panchkula so that can be your last destination. The well-planned city has beautiful gardens and offers several recreational facilities at your disposal.