FDI in construction activity has been largely liberalised; FDI is only prohibited in the 'Real Estate Business or Construction of Farm Houses' (excluding the development of townships, construction of residential /commercial premises, roads or bridges and Real Estate Investment Trusts (REITs)).
"CHAPTER 3: GENERAL CONDITIONS ON FDI [...]
3.4   ENTRY ROUTES FOR INVESTMENT 3.4.1 Investments can be made by non-residents in the equity shares/fully, compulsorily and mandatorily convertible debentures/fully, compulsorily and mandatorily convertible preference shares of an Indian company, through the Automatic Route or the Government Route. Under the Automatic Route, the non-resident investor or the Indian company does not require any approval from Government of India for the investment. Under the Government Route, prior approval of the Government of India is required. Proposals for foreign investment under Government Route, are considered by respective Administrative Ministry/Department. 
[...]
3.5   CAPS ON INVESTMENTS
3.5.1 Investments can be made by person resident outside India in the capital of a resident entity only to the extent of the percentage of the total capital as specified in the FDI policy. The caps in various sector(s) are detailed in Chapter 5 of this Circular. 
3.6   ENTRY CONDITIONS ON INVESTMENT
3.6.1 Investments by non-residents can be permitted in the capital of a resident entity in certain sectors/activity with entry conditions. Such conditions may include norms for minimum capitalization, lock-in period, etc. The entry conditions in various sectors/activities are detailed in Chapter 5 of this Circular.
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5.1 PROHIBITED SECTORS
FDI is prohibited in: [...]
f) Real Estate Business or Construction of Farm Houses
‘Real estate business’ shall not include development of townships, construction of residential /commercial premises, roads or bridges and Real Estate Investment Trusts (REITs) registered and regulated under the SEBI (REITs) Regulations 2014. 
[...]
5.2 PERMITTED SECTORS
a) In the following sectors/activities, FDI up to the limit indicated against each sector/activity is allowed, subject to applicable laws/regulations; security and other conditionalities. In sectors/activities not listed below, FDI is permitted up to100% on the automatic route, subject to applicable laws/regulations; security and other conditionalities. [...]
c) Foreign investment in sectors under Government approval route resulting in transfer of ownership and/or control of Indian entities from resident Indian citizens to nonresident entities will be subject to Government approval. Foreign investment in sectors under automatic route but with conditionalities, resulting in transfer of ownership and/or control of Indian entities from resident Indian citizens to non-resident entities, will be subject to compliance of such conditionalities. 
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5.2.10 CONSTRUCTION DEVELOPMENT: TOWNSHIPS, HOUSING, BUILT-UP INFRASTRUCTURE
Sector/Activity | % of Equity/FDI Cap | Entry Route 
5.2.10.1 Construction-development projects (which would include development of townships, construction of residential/commercial premises, roads or bridges, hotels, resorts, hospitals, educational institutions, recreational facilities, city and regional level infrastructure, townships) | % of Equity/FDI Cap: 100% | Entry Route: Automatic
5.2.10.2
Each phase of the construction development project would be considered as a separate project for the purposes of FDI policy. Investment will be subject to the following conditions:
(A) (i)  The investor will be permitted to exit on completion of the project or after development of trunk infrastructure i.e. roads, water supply, street lighting, drainage and sewerage.
(ii) Notwithstanding anything contained at (A) (i) above, a foreign investor will be permitted to exit and repatriate foreign investment before the completion of project under automatic route, provided that a lock-in-period of three years, calculated with reference to each tranche of foreign investment has been completed. Further, transfer of stake from one non-resident to another non-resident, without repatriation of investment will neither be subject to any lock-in period nor to any government approval. [...]
NOTE:
(i)  It is clarified that FDI is not permitted in an entity which is engaged or proposes to engage in real estate business, construction of farm houses and trading in transferable development rights (TDRs).  “Real estate business” means dealing in land and immovable property with a view to earning profit there from and does not include development of townships, construction of residential/ commercial premises, roads or bridges, educational institutions, recreational facilities, city and regional level infrastructure, townships. Further, earning of rent/ income on lease of the property, not amounting to transfer, will not amount to real estate business.
(ii) Condition of lock-in period at (A) above will not apply to Hotels &Tourist Resorts, Hospitals, Special Economic Zones (SEZs), Educational Institutions, Old Age Homes and investment by NRIs. [...]
(vi) Notwithstanding anything contained in Para 5.2.10 above, it is clarified that real-estate broking service does not amount to real estate business and 100% foreign investment is allowed in the activity under automatic route. 
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5.2.11 INDUSTRIAL PARKS
Sector/Activity | % of Equity/FDI Cap | Entry Route 
Industrial Parks -new and existing | % of Equity/FDI Cap: 100% | Entry Route: Automatic 
5.2.11.1 Other conditions for investment in Industrial Parks are at Annexure-7. 
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Annexure-7 Conditions for Industrial Parks 
1.1(i)“Industrial Park” is a project in which quality infrastructure in the form of plots of developed land or built up space or a combination with common facilities, is developed and made available to all the allottee units for the purposes of industrial activity. 
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1.2 FDI in Industrial Parks would not be subject to the conditionalities applicable for construction development projects etc. spelt out in para 5.2.10 of Chapter 5 of this Circular, provided the Industrial Parks meet with the under-mentioned conditions: 
(i) it would comprise of a minimum of 10 units and no single unit shall occupy more than 50% of the allocable area; 
(ii) the minimum percentage of the area to be allocated for industrial activity shall not be less than 66% of the total allocable area. [...]" (Government of India/Ministry of Commerce and Industry (2020), Consolidated FDI Policy (Effective from October 15, 2020))
Government of India/Ministry of Commerce and Industry (2020), Consolidated FDI Policy (Effective from October 15, 2020)
[<a href="https://dpiit.gov.in/sites/default/files/FDI-PolicyCircular-2020-29October2020_0.pdf">Policy</a>]