The LICS Aadhar Stambh Plan No. 843 is a non-linked, with-profits regular premium endowment assurance plan available exclusively for male lives, with a maximum sum assured of 3 lakhs. It offers maturity benefits and death benefits, with additional options like an accident benefit rider and an auto cover period for unpaid premiums. Eligibility ranges from ages 8 to 55 for the base plan, with premium payments available in various modes and potential rebates for certain conditions.