IIT Madras Schedule

I am doing B.Tech first year from the IIT Madras waiting for the examination dates to be announced by the IIT Madras. Can you please tell me the IIT Madras B.Tech first year examination schedule or Date Sheet so that I can prepare well for exams?

I want to do Ph.D. course from the Indian Institute of Technology Madras so please provide me its academic schedule, when the academic session of the Ph.D. course start in the Indian Institute of Technology Madras? Also provide me the Academic calendar of it?