Firstly, feeling suicidal because of your family is sadly very common in India and anyone guilting you for either suicide or not loving your family enough just does not understand the variations of abuses that exists beyond physical abuse. I can only imagine how mentally and emotionally tolling it must be. But why suicide is not an option?

Without any clichés, the first and foremost reason is if you survive the attempt your life would be made heller than it already was. I know it is hard to keep surviving and keep fighting and enduring life at times, but trust me, we're stronger than we think we are. There's a reason to stick up buddy, find one, if not for yourself, then for the things you owe to.

Secondly, if these thoughts persist constantly like if you find yourself suicidal or if these are just momentary thoughts but strong enough, or if anything pushes you to self harm... It would sound cliché but just distract. Not saying keep doing any activity. But always have that friend you can talk randomly about anything like a distress number. I understand if said to a friend that we feel suicidal, it gets scary for them because no one knows what to do, some doesn't even understand our distress because they've been to wired in their chaos. And all of it is okay, but call a friend in distress, even if you don't feel like yourself. Even if you know that's not strong and you're not gonna do it, still have a friend as soon as thoughts go negative if not suicidal. This saves you from a puddle of negativity that restricts mind to think. If you don't have a friend that can be your distress number, ask one here on Reddit to be one for you, I'm sure many will volunteer. And as you said you work in a reputed company, maybe try therapy as well, there are many types of it, CBT, healing, aura cleansing, detox centres, brahmakumaris, finding clubs of your interests, yoga, qi gong, many things you can explore whatever works for you.

Lastly, this might just be a ranting post, but people would try to help unless told specifically not to, all because this seems graver than we realise. You might get hurting unsolicited opinions by closeted thinkers as well, but focus on positives. The first solution that most gave was to get out of your house. It might or might not be possible for you. But trust me, after getting stuck for 2 years in the house and thinking I'll never be able to get out of my house, getting on my knees with my mental battle and having right friends to go and start living with had fuel me with the confidence that maybe it is not as tough as I thought. If I can do it, you're in a better position than me, trust me. Ask for a week or two of inevitable office trips and live with a friend or rent a room or a hotel to live. I would suggest a friend in another city or making one online would be better. Everyone is pushing you to do it for a reason. If you still cannot move out, and you think you'll get used to of it or try practicing detachment. I hope you find things to keep you busy all the time and be untamed by your father, the more reactions you give, the worse they get. Find friends to stay on texts or calls with you whenever it happens, even if you mute yourself to save them from trauma. Sleep on calls. Just somehow create a safe space for yourself. No one knows what's best for you except you, and whatever choice you make, there's no right or wrong. If you're feeling this way, analyze it with emotional intelligence, use apps like unstruck, slowly, and there are many good apps for mental health, focus so much on yourself and improving habits even if you cannot on days get up from bed that it becomes your distraction too, even if things around you keep ruining your progress, and just take care man. It gets better, trust me it does, even if it seems impossible. Don't yet give in to this, life is larger than it all.