E-Commerce/Quick Commerce : Currently one of the booming industry, So Providing Dark Store for Courier facilitated business like Amazon, Flipkart, Blinkit, Delivery, bluedart etc.
Manufacting : As, a developing nation, manufacturing business in rural areas is best as per current scenario i.e. Govt promoting MSMEs with loans & subsidy
Franchise : Become Authorized dealer of growing business like Solar, EVs, Restaurants etc. Since you've low budget search for Small Players who are reliable and offers decent products & services
Wholesale & Retail Business : Simple & Highly Competitive. Sell products which is in trend & high demand but currently unavailable in your areas.
Services : Start a Service business like Urban Company of your area by Hiring skilled people who have expertise in services business like AC & RO services, repairing, etc.
Note: All this business has their own Risks & Disadvantages, So start/build a business in which you've interest instead following other footsteps. You can also watch Shark Tank of India and foreign countries to get more new business ideas