The pacts were signed after comprehensive talks between Prime Minister Narendra Modi and his Nepalese counterpart Sher Bahadur Deuba on strategic bilateral and regional issues.
"Had a positive meeting reviewing the gamut of our partnership," Modi said at a joint press event with Deuba and assured him of India's commitment towards overall growth and development of the Himalayan nation.
Deuba said Nepal would "never allow any anti-India activities from its soil".
The two leaders also jointly inaugurated the Kataiya- Kusaha and Raxaul-Parwanipur cross border power transmission lines.
Earlier, Deuba was accorded a ceremonial welcome at Rashtrapati Bhavan, where he is staying as a state guest.
Deuba arrived here yesterday on a four-day visit, his first foreign trip after assuming office in June this year.