You can plan for... dalhousi & khajiar or McLeod ganj & dharamshala you can get direct buses from Ludhiana to these places . it can be a good option 2 to 3 days enough for these places.
These are some popular spots around Ludhiana
Jalandhar historic spot one hour away
Fatehabad archeological spot three hours away
Panchkula Ghaggar river surrounded by Shivalik hills two and half hours away
Kurukshetra battle spot during Mahabharata era two hours away
Sirsa religious sites four hours away
Pathankot quaint hill station three hours away
Faridkot royal palace two hours away
Kufri another hidden hill station five hours away.
Dalhousie, khajiiar, Dharamshala, can plan bir biling for paragliding.
if adventure sports interests you, can plan rafting at kullu, zip lining , paragliding etc
01Fatehabad. Fatehabad - Tracing The Footprints Of The Aryan Civilization. ... 02Fatehgarh Sahib. Fatehgarh Sahib - A Historical Town. ... 03Gurdaspur. Gurdaspur - A Place With Historical Significance. ... 04Bathinda. Bathinda – The City Of Lakes. ... 05Amritsar. ... 06Manali. ... 07Pathankot. ... 08Panchkula