Hyderabad, Aug 26 - Actor-turned-politician Chiranjeevi vowed to bring in organisational changes and plug loopholes in his Praja Rajyam Party (PRP), which celebrated its first anniversary Wednesday.

The celebrations were a low-key affair with Chiranjeevi unfurling the party flag at the party headquarters in Jubilee Hills here in the presence of a few PRP leaders and workers.

Speaking on the occasion, he admitted that the party failed to achieve the expected results in the recent elections and this had caused some disappointment.

The party, launched by the superstar at a massive meeting in Tirupati on this day last year, could win only 18 seats in the 294-member assembly, though it was confident of coming to power. The PRP drew a blank in the Lok Sabha elections held simultaneously in April this year.

Chiru, as the actor is popularly known among his fans, advised the party cadre not to lose heart and work hard to strengthen the party.

'Our party polled 17 percent votes.