The incident took place as Bangladeshi farmers entered Indian land to cut paddy.
The rate for crossing is fixed, the arrested guide alleged, adding that he had come to India recently with four others to send them to Pakistan via the border in Jammu.
The situation along the Indo-Bangla border in Assam's Cachar district remained tense but under control.
There was heavy exchange of fire between the two forces on August 19-20 injuring two Indian villagers along the Indian border.
The police said on Sunday the BDR fired over 400 rounds on the BSF who repulsed the attack by firing 100 rounds at Amulia.
The Bangladesh Rifles has for the first time admitted that two Pakistani terrorists infiltrated into West Bengal.
Earlier, the Bangladesh soldiers had killed two villagers.
The Border Security Force and the Bangladesh Rifles traded gunfire after the BDR objecting to Indian fencing of the border.
The Director General of the Bangladesh rifles was speaking at the conclusion of the DG-level talks with his Indian counterpart.
Nine Indians, who were detained in Bangladesh for entering the country in March without valid documents, were handed over to Border Security Force at Srimantapur border outpost in West Tripura district on Wednesday.
The fencing along the Indo-Bangla border is likely to be completed by the end of 2006, the Parliamentary Consultative Committee of Home Ministry was informed in New Delhi Tuesday.
Sinha said the BSF will also hand over a list of 172 Indian insurgent camps in Bangladesh and ask the neighbouring country to dismantle them at the earliest.
West Bengal Minister Biswanath Choudhury, accompanied by District Magistrate of South Dinajpur Sarfaraz Ahmed visited the spot and said the BDR fired every now and then and this had "terrorised" villagers.
Border Security Force and Bangladesh Rifles on Wednesday exchanged heavy fire in Cachar on the Indo-Bangladesh border.
BSF jawans, posted at the Bhaigarh border outpost, one km from Bhimpur rushed to the village after hearing the gunshots but BDR and the villagers had left by then.
BSF asserted that they will continue with embankment building work at Indo-Bangladesh border regardless of firing from Bangladesh' side.
Joint secretary level talks between India and Bangladesh begins Wednesday and internal security will top the Indian agenda.
At the six-day bi-annual meeting, the issue of killing of BSF officer allegedly by BDR personnel in Tripura in April will also be raised by the Indian side which will seek an account of action taken in the matter.
The two will discuss ways and means to avoid standoffs over issues like smuggling and illegal migration.
This is the second haul of arms and explosives in Bangladesh since September.
Despite documentary evidence supplied by the BSF, the BDR refused to accept that the stranded immigrants were Bangladeshis.
Cross-border movement of criminals, and smuggling of firearms and narcotics are expected to dominate a crucial bi-annual border talks between India and Bangladesh that began in Dhaka on Sunday.
'The CAA should be kept in abeyance, without making it a prestige issue.'
'Laying down a clear policy on the future of illegal migrants will dispel anxieties and help in implementing the CAA, NPR and also the NCR,' suggests former Union home secretary Dr Madhav Godbole.
A total of 820 ex-paramilitary soldiers and 26 civilians were put on trial and Dhaka metropolitan sessions court judge Md Akhtaruzzaman gave life imprisonment to 158 rebel soldiers and jail terms of three to 10 years to 251 others, while 271 were acquitted.