I am a 2021 batch BTech student and I am planning to apply via off-campus mode to companies like Google, Amazon, etc by using a referral. As a 2021 batch student in India, I need advice from you all that in which month of the year I should apply for software engineering roles in the companies? Also, should I wait for the job form to come on the careers site (if it ever comes) or directly take a referral and start the process? I really need help with this because I don't want to miss the opportunity to apply. Experience from someone who himself applied and got an offer via off-campus mode is really appreciated. Thanks in advance :)