Rashtriya Lok Samata Party (RLSP) chief Upendra Kushwaha on Monday charged the BJP with reneging on its promise on seat sharing and said it would lodge a complaint with his ally's top leadership, baring the uneasy relationship among the NDA partners ahead of the Bihar elections.

Kushwaha vent his anger with regard to the Minapur seat in Muzaffarpur district, which the RLSP was eager to contest, but from where the BJP has already declared a candidate.

"We were eager to field the national general secretary of our party (Shivraj Singh) from the seat. The BJP claimed it on the basis of a sitting seat but assured us that if the sitting candidate did not contest, they will give the seat to us. Now they have fielded a relative of the sitting candidate. I will take up this matter with (BJP president) Amit Shah," Kushwaha, the junior HRD minister in the Narendra Modi government, said, alleging that the BJP had gone back on its assurance.

This is the second time the RLSP has expressed anger over the alleged big brotherly attitude of the BJP in seat sharing. Earlier the RLSP had objected to the announcement of candidates by the BJP even as discussions on identification of seats were on. The party had refused to talk to Bihar BJP leaders and demanded intervention of the central leadership.

Kushwaha acknowledged his party was tolerating the BJP's senior partner attitude to an extent in the interest of the larger cause - to defeat the "unholy alliance" of Lalu Prasad and Nitish Kumar.

"The BJP is the senior partner and there are many issues but we are not raising a hue and cry because we are committed to free Bihar of Lalu Prasad and Nitish Kumar," Kushwaha said.

But the RLSP chief himself had to deal with upset aspirants when the party declared its first list of 17 candidates out of the 23 seats the party is contesting.

Ashok Gupta, an aspirant for the Narkatiaganj seat in West Champaran, slumped on the ground at the news conference convened by the RLSP at Kushwaha's Lodhi Estate residence to announce the names of the candidates.

" Baap re baap! Loot liya (My God! I have been robbed)," Gupta exclaimed, as he lay supine on the floor.

Of the 17 candidates announced on Monday, seven are from the Kushwaha grouping. The party has also rewarded those who have been with Upendra Kushwaha since his days in the Samata Party.

Former MLA Lalan Paswan will contest from Chenari. Lalan had represented the seat in 2005. The list also includes former Jamui MP Bhudev Chaudhary, a former JDU MP who was denied a ticket in the 2009 general election. In the prestigious seat of Barbigha, the party has fielded Shiv Kumar, a relative of Bihar's first post-Independence chief minister Sri Krishna Singh.

ADDITIONAL REPORTING BY OUR SPECIAL CORRESPONDENT IN PATNA