Bengali is the most widely spoken language by the Indian diaspora in Bangladesh, due to the large number of Bengali-speaking people who migrated from India to Bangladesh during the partition of India in 1947.

Hindi is the second most widely spoken language by the Indian diaspora in Bangladesh, due to the large number of Hindi-speaking people who migrated from India to Bangladesh during the partition of India in 1947.

Urdu is spoken by the third largest group of the Indian diaspora in Bangladesh, due to the large number of Urdu-speaking people who migrated from India to Bangladesh during the partition of India in 1947.

Punjabi is spoken by the fourth largest group of the Indian diaspora in Bangladesh, due to the large number of Punjabi-speaking people who migrated from India to Bangladesh during the partition of India in 1947.

Gujarati is spoken by the fifth largest group of the Indian diaspora in Bangladesh, due to the large number of Gujarati-speaking people who migrated from India to Bangladesh during the partition of India in 1947.

Marathi is spoken by the sixth largest group of the Indian diaspora in Bangladesh, due to the large number of Marathi-speaking people who migrated from India to Bangladesh during the partition of India in 1947.

Telugu is spoken by the seventh largest group of the Indian diaspora in Bangladesh, due to the large number of Telugu-speaking people who migrated from India to Bangladesh during the partition of India in 1947.

Kannada is spoken by the eighth largest group of the Indian diaspora in Bangladesh, due to the large number of Kannada-speaking people who migrated from India to Bangladesh during the partition of India in 1947.

Malayalam is spoken by the ninth largest group of the Indian diaspora in Bangladesh, due to the large number of Malayalam-speaking people who migrated from India to Bangladesh during the partition of India in 1947.

Odia is spoken by the tenth largest group of the Indian diaspora in Bangladesh, due to the large number of Odia-speaking people who migrated from India to Bangladesh during the partition of India in 1947.

Assamese is spoken by the eleventh largest group of the Indian diaspora in Bangladesh, due to the large number of Assamese-speaking people who migrated from India to Bangladesh during the partition of India in 1947.

Konkani is spoken by the twelfth largest group of the Indian diaspora in Bangladesh, due to the large number of Konkani-speaking people who migrated from India to Bangladesh during the partition of India in 1947.

Manipuri is spoken by the thirteenth largest group of the Indian diaspora in Bangladesh, due to the large number of Manipuri-speaking people who migrated from India to Bangladesh during the partition of India in 1947.

Kashmiri is spoken by the fourteenth largest group of the Indian diaspora in Bangladesh, due to the large number of Kashmiri-speaking people who migrated from India to Bangladesh during the partition of India in 1947.

Nepali is spoken by the fifteenth largest group of the Indian diaspora in Bangladesh, due to the large number of Nepali-speaking people who migrated from India to Bangladesh during the partition of India in 1947.