Conveying its serious concern over the serial blasts in Bangladesh, India on Thursday offered to it 'any kind of assistance' while asking Dhaka to identify the perpetrators of the terror acts.

"A stable, prosperous, secular and democratic Bangladesh is not just in the interests of the people of Bangladesh, but also of India and the region as a whole," External Affairs Ministry spokesman Navtej Sarna told reporters here.

Sarna said reports relating to an unprecedented 459 blasts in 63 of the 64 districts in Bangladesh in a short space of 30 minutes continued to come in. Two persons were killed and about 150 injured in the blasts that simultaneously rocked cities and towns of Bangladesh on Wednesday.

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Sarna said leaflets have been found at the site of each of the blasts authored by a fundamentalist outfit, the Jama'atul Mujahedin Bangladesh, that was banned just six months back. The militant group had demanded the establishment of an Islamic State in Bangladesh and condemned democracy, the judiciary and the electoral system as un-Islamic.