There is no alternative or disagreement about something; it is indisputable.

इसमें कोई दो राय नहीं है।

English Usage: "You have to finish your homework before playing games, no two ways about it."

Hindi Usage: "तुम्हें अपना होमवर्क खत्म करना ही पड़ेगा, इसमें कोई दो राय नहीं है।"