Deputy Prime Minister L K Advani said today that pollsters may be into ‘‘electoral arithmetic’’ that may not favour the BJP but the ‘‘pro-BJP chemistry’’ was certainly in the party’s favour. ‘‘When we went for early elections, people told us that the BJP had already reached saturation point and asked where will it get extra seats from,’’ said Advani. ‘‘But our belief that the chemistry was in favour worked.’’ Speaking to The Indian Express on his way to campaign for Minister of State Chaman Lal Gupta in the border town of Hiranagar, Advani ruled out any post-poll alliance with NCP leader Sharad Pawar. But he indicated concern over AIADMK leader J. Jayalalithaa’s ability to muster a significant number of seats in this elections. As for TDP, Advani was more confident saying that Chandrababu Naidu would come back to power even though by reduced numbers. The pre-election ‘‘general chemistry’’ in favour of Prime Minister Atal Behari Vajpayee, Advani said, was akin to a wave in favour of the Janata Party in 1977 and the Congress in 1984. ‘‘While everybody is into electoral arithmetic, no pollster or exit poll can predict the outcome of this pro-BJP chemistry,’’ he said. While this would benefit the BJP, Advani said he wasn’t so sure about its impact on the BJP’s allies. ‘‘Some of the NDA allies like JD(U) have problems of their own.in fact acute problems,’’ he said. Stability, says PM; Mulayam says BJP floating rumours