Don't be sad, if you don't get selected or even interviews scheduled from 5 companies. Many folks are not even passing the initial screening even after applying 30+ companies. Hope for the best. Always be ready to apply other companies.
Once you clear all rounds, try as you mentioned. It's a good strategy to sell current package to get higher CTC.
One advice, to increase your chances of getting interviews schedules, go through referrals, that too of your seniors, ex-colleagues, classmates. If they can vouch for you, it would be better and hr could select you easily