Hi Nitin! I am glad you are taking the initiative of travelling solo.
I would suggest the following places: 1. Kasol: Called as the 'Mini- Amsterdam' of India. You can trek, find lots of Israelies staying near, good cafes around and find good cultural aspects near Manikaran and Bhurtan.
2. Puducherry: It is also a wonderful place to visit. You can find a French Colony, meet and eat with French people staying around. Also, you can experience water adventure activities. Really good place if you are a hard-core Non-Vegetarian!