It had raised angel funding in November last year.
It will use the money for marketing, brand building and customer acquisition.
The portal was founded in 2008.
It will make Series A to Series C investments.
It closed its maiden $25 million fund in 2012.
The startup connects people in tier 2 and 3 cities with medical stores, path labs and doctors.
Sanjay Mirchandani and Venturesity’s Rajesh Rai also invested in the workspace solution provider for startups.
Nexus was the fifth most-active VC firm in India last year.
It has 150 optical stores in its network in Pune.
In December it had raised funds from Rajan Anandan, Pramod Bhasin and others.
It sells niche perfumes on its e-commerce platform.
Capria was started by Unitus founders last year.
The VC fund plans to invest $20 million in 40 startups.
It has previously invested in US ventures floated by Indians.
The Dubai-based beauty and wellness booking platform earlier raised $500,000 in angel funding.
The chain is also backed by Everstone Capital.
It first got investment from the impact investor in 2014.
This is Chandrasekaran’s thirteenth personal investment.
Aarin Capital also participated in the round.
The startup last raised funds in 2014.