New Delhi, Mar. 24 (Agencies): The Bharatiya Janata Party gained 11 seats while the Congress lost four in the biennial elections for 58 seats in the Rajya Sabha. But the BJP-led National Democratic Alliance is yet to get a majority.

The Narendra Modi government has often seen key bills pass in the Lok Sabha but fall in the Rajya Sabha because the NDA lacks a majority in the upper house.

The BJP saw 28 of its candidates win in the polls held on Friday, with 17 members retiring. While the Congress won only 10 seats, with 14 of its members retiring next week.

The BJP's strength in the 245-member House will go up from the existing 58 to 69 and that of the Congress will fall from 54 to 50 when the new lawmakers take their oath next week.

The NDA recently suffered a setback when the Telugu Desam Party, its ally of four years, decided to break ties. The TDP has six members in the House.

However, NDA leaders are upbeat because of the losses made by their most vocal opposition parties such as the Congress and the Samajwadi Party, which won only one seat while six  of its members are retiring.

BJP sources said the treasury benches will now be more comfortably placed in the House as regional parties such as the All India Anna Dravida Munnetra Kazhagam, Telangana Rashtra Samithi (which has gained three more seats), YSR Congress and the Biju Janata Dal all of whom are outside the NDA, have been more open to supporting the government's legislative agenda.

The BJP's victory in a series of state Assembly elections has resulted in a steady rise in its numbers in the upper house, whose members are elected by assemblies, while the loss of power of the Congress in many states has led to a fall in its numerical strength in the Rajya Sabha.