My course on NPTEL Introduction to Algebraic Graph Theory

• Invited talk- at exploreCSR 2023-2024: Google Research Sponsored Mentorship Program- IIT Roorkee, 2024

• Convener and lecturer for Advanced Training in Mathematics for Algorithmic Graph Theory, supported by NBHM, TIFR, IIT Bombay
• Invited talk- at 38th Annual Conference of Ramanujan Mathematical Society, 2023 on Expanders.

• Invited talk- at Department of mathematics IIT Kharagpur, 2020 on Ramanujan Graphs.

• Invited talk- at Department of Computer Science and Engineering, IIT Indore, 2021, in iWAI 2021 workshop, on PCA using SVD.
• Invited talk- at Department of Mathematics, IIT Indore, 2021, in the “Hardy-Ramanujan Lecture Series” on Ramanujan Graphs (The Best Expanders).
• Invited talk- at ISI-Delhi, India, 2019, on the occasion of retirement of Prof. RB Bapat, on nonsingular block graphs.
• Contributory talk- at University of Haifa, Israel, in Haifa Workshop on Interdisciplinary Applications of Graphs, Combinatorics and Algorithms, 2019 on linear-time algorithm for the nullity of block graphs.
• Contributory talk- at University of Haifa, Israel, in Haifa Workshop on Interdisciplinary Applications of Graphs, Combinatorics and Algorithms, 2018 on parametrized complexity of matrix determinant and permanent.
• Contributory talk- at Manipal university, Manipal, India, in ICLAA (International Conference on Linear Algebra and its Applications), 2017, on determinants and permanents of graphs.