Did Myanmar and Republic of India exist in the same era?

Yes, the two civilizations both existed around 1948 CE.

Which lasted longer, Myanmar or Republic of India?

Republic of India lasted longer (79 years).

Myanmar: Asya; Republic of India: Güney Asya

Myanmar (1948 CE – present) and Republic of India (1947 CE – present) lived in the same era.

	Myanmar	Republic of India
Period	1948 CE – present	1947 CE – present
Duration	78 years	79 years
Region	Asya	Güney Asya
Capital	—	Yeni Delhi
Type	Country	Republic
Government	Cumhuriyet	Federal Parlamenter Cumhuriyet
Religion	—	Hinduizm, İslam, diğerleri
Language	—	Hintçe, İngilizce
Peak population	54,045,420	1,400,000,000
Rulers	13	8

Republic of the Union of Myanmar · Asia

The world's largest democracy. It gained independence through Gandhi's nonviolent resistance movement. Unity in diversity.

Did Myanmar and Republic of India exist in the same era?: Yes, the two civilizations both existed around 1948 CE.
Which lasted longer, Myanmar or Republic of India?: Republic of India lasted longer (79 years).
Which regions did Myanmar and Republic of India rule?: Myanmar: Asya; Republic of India: Güney Asya