Nilesh,
It is difficult to make a suggestion without power requirements. Most boost converters/controllers can also be used as a flyback.
I recommend using the power quick search located at http://www.ti.com/lsds/ti/analog/powermanagement/power_portal.page with the design requirements to find the possible solutions to the boost application. Then determine if the part will also meet the flyback design requirement.
Best Regards,
Anthony