The best time to visit India varies depending on location but generally the following applies. In the north, mid Oct until mid December followed by early February until the middle of March (January is too cool in Delhi). At these times temperatures are pleasant and warm but not too hot. In the south of India it is quite similar, but not quite the same, Generally the best times here are Nov through to the end of March.  If you travel to for example Kerala after March it can be sticky and humid with too many mosquitoes.  Our tour of Rajasthan has been created with the best weather in mind. It will be nice and warm by day and even in the evenings you can dine outside with just a t shirt or blouse. Dining alfresco in some stunning locations is part of the enjoyment