Who will be AAP’s principal challenger?NEW DELHI: Who will be the principal challenger to Arvind Kejriwal’s Aam Aadmi Party in the 2027 assembly elections in Punjab?On paper, the answer should be Congress. After all, it is the main opposition party in the state, with 18 seats in the assembly, followed by the Shiromani Akali Dal and the BJP in terms of numbers. But a closer look at how the three parties are preparing for the electoral battle suggests the winds may be changing.The BJP, despite having the weakest presence in Punjab at the moment, has made the strongest push so far. The party has dropped enough signals that it intends to go all out in the state. Prime Minister Narendra Modi, Union home minister Amit Shah, BJP president Nitin Nabin and Haryana chief minister Nayab Singh Saini h