You can take a bus directly to manali,spend 2 days there,must visit Solange valley.
After that take bus to Mcleodganj, go for triund trek, stay there for 3 days, exploring khajjiar as well.
Now if you have energy and time, take a bus to shimla, enjoy there for 2 days.
You are done with packed 7 days.
You can go to Jibhi-Jalori-Tirthan-Kullu if you have 6 days. Going to Manali/Kasol/Dharamshala will not be a good option as these places are now become too much crowded. Head for Jibhi village and there you can enjoy some quality time and also can go to Jalori pass trek, raghupur fort trek, tirthan valley. You can also explore kullu for a day or two as you have 6 days. Hope this will help. Happy Travelling.
Hi Pradumn, I have attached with this comment few packages, you can click on the cards to find more details about them. If you want to book any of these all of you have to do is submit your info in the form and someone from Tripoto will get in touch with you.