India's main opposition BJP expected to gain in Delhi polls

A woman looks at her voter identification card as she enters a booth at a polling station in Amka village on the outskirts of New Delhi April 10, 2014. [Photo/Agencies]

Experts predict that the BJP is likely to be the main beneficiary of the sliding popularity of the Congress party and the AAP.

"The BJP is riding on a wave of its prime ministerial nominee Narendra Modi. People are fed up with the Congress for its involvement in a series of corruption scandals and its inability to check inflation. So, the BJP is on high ground in the Indian capital," said Delhi-based political analyst Ajay Singh.

Indian general elections enter key phase

The BJP may win all the parliamentary seats in Delhi, where all the top BJP leaders, including Modi, L.K. Advani and party chief Rajnath Singh, campaigned. In the 2009 general elections, Congress won all seven seats, while the BJP won none.

"It will be different this time," said Gupta. "The BJP's good performance in the general elections will pave the way for it to form the government when assembly elections are held in the national capital within months. The BJP last time got 32 out of 70 assembly seats. It will do better this time."

Modi has appealed to all people in the Indian capital through advertisements in all leading dailies: "Your vote for our seven candidates in Delhi is a vote for me. Vote for them and help me build a strong and prosperous India."

Some 814 million Indians are eligible to vote in the polls, which began on April 7 and will conclude on May 12, with results due on May 16.