Yes,
In those days there were great conflicts (Not armed or fights) between Hinduism and Boddhism. Adi Shankara and Kumaril bhatta went place to place and chellanged Buddhist to come for discussion (Shastrath). They defeated Buddhist in discussion and compale them to accept Hinduism (Since there was a condition that who so ever loose will accept the faith of winner). And slowly Buddhism parished from India.
There is a story. There was a princess who was crying. A brahmin boy named Kumaril Bhatta passed by her and asked her the reason of her crying . She replied that Buddhism is flourishing every where and kings and people were adopting Buddhism. Who will save sanatan dharma? The brahmin boy promised her that he will save sanatan dharma.
The boy went to bauddh math and learned Buddhism. He studied vedas also. when his study completed, He came out in open and chekllanged buddhist to come for shastrath. He defeated all bauddh priest and make them accept Sanatan dharme. When his mission completed, he decided to do a remorse since he betrayed his bauddh teachers from whom he had learned Buddhism. The remorse of GURUDROH (Betraying the teacher) is to burn yourself alive and that to very slowly to inflict highest pain on yorself before you burn yourself completly. He sat on on burning nutshell and alowly burned himself listening Pranab Mantra (Omkar) from Adi shankara who had came ther for shastrarth.