The sides say there is a difference of perception on water issues

Senior officials decided to set up a joint committee to narrow the gaps on highly technical issues in the next three months.

But no new date was fixed for the next round of talks.

India is also seeking Dhaka's help in cracking down on militant camps it alleges are present in Bangladesh.

The BBC's Waliur Rahman in Dhaka says officials tried to put a bold face on their failure to narrow their differences on water sharing.

India and Bangladesh share at least 54 common rivers and have an agreement on the Ganges but want a long-term deal on other sources.

"We've made substantial progress, reached agreement on six issues, but we need more time to narrow the differences on remaining points," Indian secretary, Vinod Duggal, said.

He acknowledged there was a "difference of perception" on some issues.

Militant leaders

A senior official from the Indian home ministry said Delhi also wanted Dhaka to deport several militant leaders wanted in India and believed to be in Bangladesh.

We will also hand over to Dhaka a list carrying names of a dozen insurgent leaders and their addresses in that country Rajeev Agarwal Indian official

"We will hand over to Dhaka a list carrying names of a dozen insurgent leaders and their addresses in that country for handing them over to us," the official, Rajeev Agarwal, told journalists in Delhi.

India wants the two countries to carry out joint operations against the alleged camps.

Dhaka denies that any anti-Indian group is operating from its territory.

Ties have soured recently between the two nations over the issue.

Last week Delhi summoned the Bangladesh High Commissioner to India to record its disapproval over recent comments made by Bangladesh's foreign minister.