Reached Mandi from karnal, didn't go through Chandigarh. There's a 6 km off road in bad condition in Punjab due to rain. It was drizzling all the way, don't forget to carry heavy rain coat, water proofing your luggages. Ghat section road is not in good condition, it will slow you down. At some places the highway is awesome as you get closer to Mandi but it is of short duration. Lot of lorries and truck coming from Mandi/Manali towards Chandigarh. Don't expose your body at all. Unless you want to look like a burnt wood. Sunscreen 50spf is must, at least from Delhi to Chandigarh.. don't know about blockage from Mandi to Manali, will enquire tomorrow and update,Please keep posted. I heared that some blockage on Mandi to Manali road. Please do let me know.