The Genius Scientist in A Magic World

A man who is a doctor and scientist dies due to people thinking he is too dangerous due to his advanced science theories which are revolutionizing the world especially his country India. But as he was about to go to afterlife, he pressed a button, which sends all the evidence of his death to the prime minister of his country but even if he wanted what's best for India. The prime minister was corrupt and so he deleted the files. Thankfully no one could get his further scientific theories since he decided to take it to the grave. But as he drifted to the afterlife thinking about his family and his Lord Shiva, suddenly everything reappears. Now he was in a run-down warehouse, sulking away in this modern world. Now let's see how he revolutionizes this world and grows stronger to get revenge. Yes, there is a harem but not like usual. Here our MC hates the whole concept of Lust and Love thinking that it ruins your life, but he is a hypocrite too since he believes that only parent and child love is the truest, So don't expect him to chase after girls or fall in love instantly after seeing her appearance. Sure, he will describe the appearance, but he will be stating facts nothing more. Also, the girls won't also fall in love with him instantly, it will take time for them and him too.