We must book our flights Canada to India soon. We were hoping to travel through Rajasthan, including Varanassi in Feb. 2013, but are worried about fog delays on internal flights and trains. Guide books and some reports say Feb. is a great month to travel, while others warn against it. We aren't concerned with colder morning temperatures, just with wasting precious holiday days/hours stuck in airports or train stations. We will travel independently, booking a week or so of the holiday in advance. If you have traveled in Feb., please reply with your experiences. Thanks.