15 to 30 Days on an average from the date profile is shared.
This depends on multiple factors like your Current CTC, how you fared in you Technical interview, Internal Parity of the firm who is hiring and Band being offered.
Very tough as firms always ask for prior experience and if there is too much discounting of experience then it disturbs batch parity
Depends on the reason for job change. If it’s only monetary then it’s better to change after taking the bonus and appraisal. But many times firms are willing to compensate for the same to get good candidates on board. Though it depends on their sole discretion.