If your name has been missed from the electoral list, even after voting for many years from the same address, you should first complain to the District Collector, who is also the District Election Officer. While filing a writ online might be too slow given the election date, you can also approach the Presiding Officer at your polling booth or check the ASD list. If your name is there, providing proof of residence might help reinstate it. Engaging a local advocate is also an option.