How much it cost to repair lenovo screen or lcd in Indian rupees?

Depends on the size of your screen, the resolution of your screen, and whether you'll replace it yourself or get it replaced by authorized Lenovo service engineer.
Note I said "replace". The screen won't be repaired, it'll be replaced with a new screen.
If you'll get it done by Lenovo, the minimum cost would be Rs. 13,000.
I had a problem with an HP screen, and HP asked for Rs. 15,000 to replace it.
I threw away the laptop and got a new one, it wasn't worth spending so much money on a 4 years old laptop for me.
If your laptop is newer, or an extremely expensive model (you spent more than Rs. 65,000 while purchasing the laptop), it'll be worth replacing. If it's an ordinary every day non expensive laptop, it's not worth replacing the screen, just get a new laptop instead.
Use the "Chat" option in Lenovo technical support website. And ask then to send you a quote for on-site service of LCD panel replacement, they'll send you an email with the price required. If you reply to that email and tell them you agree to pay the money, they will send you a service engineer at your home within 24 hours to replace the screen. You'll have to pay only after the replacement is complete and your computer is working fine. No credit card required, you'll have to pay in cash to the service engineer who visits you.
The new LCD panel will come with a 3 months warranty.