Shiv Sena MP Sanjay Rauton Saturday called for expanding the scope of the Congress-led UPA bloc, saying the Opposition should unite against the "dictatorial attitude" of the Centre and provide a "formidable alternative" to the Narendra Modi government.

Speaking to reporters here, Raut also said that Sonia Gandhi effectively led the United Progressive Alliance (UPA) all these years and now the time has come to expand its scope by inducting more allies.

Responding to a query on a speculation that NCP chief Sharad Pawar may head the UPA, Raut said there was no dearth of leaders in the country.