Ahmedabad to Manali can be reached via two ways. One is you can reach it through Delhi and the other is you can reach it through Chandigarh. You can opt for a flight from Ahmedabad to Delhi. It will take around an hour and a half to reach Delhi. The cost will be around Rs.1800-3000. Delhi to Manali you can take a luxury bus which will take approximately 15 hours to reach Manali. The cost would be between Rs.750-1800. You can opt for a flight from Ahmedabad to Chandigarh too. It will cost you somehwhere between Rs.3000-5000. It will take around 3-5 hours to reach. You can book a luxury bus from Chandigarh to Manali it will take approximately 10 hours to reach Manali. The cost would be between Rs.700-1400. There is one more option one can opt for. A train from Ahmedabad to Delhi which will take around 14 hours to reach Delhi. The tickets would cost you somewhere between Rs.450-2000. Then from Delhi you can have a bus to Manali. The prices of the bus are mentioned above.