I'm plan to visit China first week of March. Is it ok for climate?

Prashanth, it's the beginning of Spring. Generally speaking, it's ok to travel during this period. But it might be a bit cold in some cities of Northern China, such as Beijing. I went here in Mid March of 2015. I remembered that I wore a thick overcoat and sweater inside. If you just visit southern China, you needn't take your thick clothes.