Why did Stalin Caution his Party men to be more Vigilant in 4 MP Constituencies?

Why did Stalin caution his party men to be more vigilant in 4 MP constituencies?

Today morning DMK President Stalin in a statement issued asked his party men to be vigilant on the counting day. He specifically mentioned four MP constituencies Karur, Ramanathapuram, Theni, and Coimbatore to be more alert. He said he had reliable information that instructions have come from high command to the opposition to win these 4 constituencies somehow. However, he did not specify the source or the ways and means. In reply to this, the State BJP President Tamilisai has said Stalin not having faith in democracy

Why are these four seats considered necessary by the opposition if what Stalin said is based on facts?

In Karur, Congress nominee Jothimani and AIADMK's Thambidurai and in Coimbatore, CPIM PR Natarajan and BJP's CP Radhakrishnan. In Theni, Former president of the Tamil Nadu Congress EVKS Elangovan and AIADMK P, Rajendra Kumar, son of Deputy Chief Minister O.Panneer Selvam. Finally in Ramanathapuram - IUML candidate K.Navas Kani on behalf of DMK, and Nainar Nagendran of BJP.

Maybe the reason for extra caution of Stalin could be due to the fact that out of 4, two is contested by BJP heavyweights. Also, Coimbatore is the base from which BJP tries to enter into Tamil Nadu.

Nationwide alert on EVMS by opposition parties:

Since the outcome of exit poll results, the opposition parties are more concerned about the counting methods. 21 parties of the opposition have met CEC today to know the procedures which are to be implemented in case of mismatch of VVAPT and EVM. Also,it is to make sure everything goes well on the counting day. There are also complaints from various parts of India like Bihar and UP were EVMS are being shifted from their safe custody place.

Though Tamilisai talks about belief in democracy to Stalin's caution, it is pertinent for the opposition parties to be vigilant to save democracy.