Tech Mahindra Sr. Software Engineer interview questions

first round will be telephonic probably screening test it took around half an hour. Second round will also be technical telephonic discussion it will be around 40 mins. Third round will be face to face which will take around 15 mins and later you will have hr discussion which is the final round

Very simple core java programming like string collection how hash map work what is spring boot difference between spring and spring boot hibernate mapping inverse rest full web service intergration