Bharat is mentioned in ancient literature of all major religions of India. Here the one from Purana.
uttaraṃ yatsamudrasya himādreścaiva dakṣiṇam
varṣaṃ tadbhārataṃ nāma bhāratī yatra santatiḥ
उत्तरं यत्समुद्रस्य हिमाद्रेश्चैव दक्षिणम् ।
वर्षं तद् भारतं नाम भारती यत्र संततिः ।।
"The country (varṣam) that lies north of the ocean and south of the snowy mountains is called Bhārata; there dwell the descendants of Bharata."
aur zor laga natta.
Worshiping our donga proudly only proves one thing,