There are 7 levels of Baldness ranging from Level 1 to Level 7.
The higher the level of baldness, the more hair grafts you will require for hair transplant. As an answer to your question, The cost of a hair transplant in India for 1500-3000 grafts will be ranging from Rs. 45,000- Rs. 95,000/-(Estimation).
For your knowledge, we have listed below the cost Per Graft according to each technique:

1. Follicular unit extraction (FUE): (Cost in INR) Rs.40 per graft to Rs.60 per graft.
2. Follicular unit transplant. (FUT): (Cost in INR) Rs. 20 per graft to Rs. 30 per graft.
3. Direct hair implant (DHI): (Cost in INR) Rs. 100-150/Follicle
4. Robotic hair restoration: (Cost in INR) - per graft is Rs. 60 to Rs. 100.
5. PRP: Rs.5000 to Rs.15000

Also, depends upon the number of sittings. Further, we'll suggest that you go for a consultation to a hair transplant surgeon nearby. Our blog will also provide detailed information: Cost of Hair Transplant in India. Thank you We Hope our answer helps you. To seek consultation, you can refer our page - Hair Transplant Surgery doctors in Chennai, let us know if your city is different!